We have a Washington, D.C. meeting planned for Wednesday, November 10, at El Paso Cantina. We will have special guest, Betty White, there to answer questions.
Journal entry today we learned how to find the additive inverse Ex: 12x4th-3x2nd+4x Ans: -12x4th+3x2nd-4x We also learned how to subtract the polynomials Ex: (5x4th+4)-(2x2nd-1) Ans: 5x4th-2x2nd+5 Ex: (4x3rd+2x2nd-2x-3)-(2x3rd-3x2nd+2) Ans: 2x3rd+5x2nd-2x-5
Today we learned how to find the additive inverse. an example would be: 15x-4+19 the additive inverse of this would be: -15x+4-19 also, we learned how to subtract polynomials an example would be: (13x2-23+14)-(10x-4+16) first you remove the parenthesis and find the additive inverse of the polynomial: 13x2-23+14-10x+4-16 then you subtract 13x2-10x-19-2 this is how you subtract polynomials
Journal Entry #29;Subtraction of Polynomaials Today in class, I learned how to subtract polynomials by adding the additive inverse. An additive inverse is two numbers that make the sum of zero. Example : (3y4th-4y+3)-(3y4th-2y+5) = 3y4th-4y+3 (-3y4th+2y-5) = 0y4th-2y-2 = -2y-2
Finding the Additive Inverse: 12x2nd-7x+3 -(12x2nd-7x+3) = -12x2ndpower+7x-3
Today in math class, we didn't learn any new justifications but did "find the additive inverse" and "subtract the polynomials." It was really easy. We don't need to write any justifications because we just add or subtract.
Journal entry 11/2/10 today we learned hot to find the additive inverse (opposite) for ex: 12x4th-3x2nd+4x -(12x4th-3x2nd+4x) Ans: -12x4th+3x2nd+4x
We also learned how to subtract polynomials horizontally and vertically. Horizontal Ex: (5x4th+4)-(2x2ns-1) first, you take the parentheses away & switch the signs 5x4th+4-2x2nd-1 Ans: 5x4th-2x2nd+5 Vertical Ex: (4x3rd+2x2nd-2x-3)-(2x3rd-3x2nd+2) 4x3rd+2x2nd-2x-3 -2x3rd+3x2nd+0x-2 Ans: 2x3rd+5x2nd-2x-5
Today we learned about the additive inverses, and subtraction of polynomials. Additive inverse is another word for opposite. For example: The additive inverse of 6x2nd-4x+2 would be -6x2nd+4x-2
When subtracting polynomials, use the additive inverse, then combine like terms. For example: (x3-2x2nd+2)-(x4-2x3rd-3x2nd) (x3-2x2nd+2)+(-x4+2x3rd+3x2nd) -x4+3x3rd+x2+2 To subtract in the vertical form, (4x3rd+2x2nd-2x-3)-(2x3rd-3x2nd+2) 4x3rd+2x2nd-2x-3 -2x3rd+3x2nd+0x-2 ------------------ 2x3rd+5x2nd-2x-5
21 comments:
Does anyone know when pg.625(1-25)is due?
@Marcus, it was due today
Journal entry
today we learned how to find the additive inverse
Ex: 12x4th-3x2nd+4x
Ans: -12x4th+3x2nd-4x
We also learned how to subtract the polynomials
Ex: (5x4th+4)-(2x2nd-1)
Ans: 5x4th-2x2nd+5
Ex: (4x3rd+2x2nd-2x-3)-(2x3rd-3x2nd+2)
Ans: 2x3rd+5x2nd-2x-5
Oh...ok. Thanks!
why Betty White? haha!
Today we learned how to find the additive inverse. an example would be:
15x-4+19
the additive inverse of this would be:
-15x+4-19
also, we learned how to subtract polynomials an example would be:
(13x2-23+14)-(10x-4+16)
first you remove the parenthesis and find the additive inverse of the polynomial:
13x2-23+14-10x+4-16
then you subtract
13x2-10x-19-2
this is how you subtract polynomials
Journal Entry #29;Subtraction of Polynomaials
Today in class, I learned how to subtract polynomials by adding the additive inverse. An additive inverse is two numbers that make the sum of zero.
Example :
(3y4th-4y+3)-(3y4th-2y+5) =
3y4th-4y+3 (-3y4th+2y-5) =
0y4th-2y-2
= -2y-2
Finding the Additive Inverse:
12x2nd-7x+3
-(12x2nd-7x+3)
= -12x2ndpower+7x-3
Journal Entry
11/2/10
Today in math class, we didn't learn any new justifications but did "find the additive inverse" and "subtract the polynomials." It was really easy. We don't need to write any justifications because we just add or subtract.
Period 2: Gilbert Z.
Period 3:
Period 4: Tsubasa K.
Period 5: Sindy L.
Period 6:
Unknown#: Matt
Matt, please add your Period to your name.
do we justify for 3-21 odd?
yes
Journal Entry
In class, we learned about the additve inverse which is the opposite.
Example: 12x-3x2+4x
-12x+3x2-4x
Also we learned to subtract polynomials as adding them except you use the additive inverse.
Example:(4x3+2x2-2x-3)-(2x3-3x2+2)
= 4x3+2x2-2x-3-2x3+3x2-2
= 2x3+5x2-2x-5
Period 2: Gilbert Z.
Period 3:
Period 4: Tsubasa K. Brad L.
Period 5: Sindy L.
Period 6:
Unknown#: Matt
Journal entry 11/2/10
today we learned hot to find the additive inverse (opposite)
for ex: 12x4th-3x2nd+4x
-(12x4th-3x2nd+4x)
Ans: -12x4th+3x2nd+4x
We also learned how to subtract polynomials horizontally and vertically.
Horizontal Ex: (5x4th+4)-(2x2ns-1)
first, you take the parentheses away & switch the signs
5x4th+4-2x2nd-1
Ans: 5x4th-2x2nd+5
Vertical Ex:
(4x3rd+2x2nd-2x-3)-(2x3rd-3x2nd+2)
4x3rd+2x2nd-2x-3
-2x3rd+3x2nd+0x-2
Ans: 2x3rd+5x2nd-2x-5
Period 2: Gilbert Z.
Period 3:
Period 4: Tsubasa K. Brad L.
Period 5: Sindy L.
Period 6: Kyle S.
Unknown#: Matt
No one from Period 3?
@Eric haha your period :P maybe the "Matt" is from your period...
Journal Entry, 11/2/2010
Today we learned about the additive inverses, and subtraction of polynomials. Additive inverse is another word for opposite.
For example:
The additive inverse of 6x2nd-4x+2 would be -6x2nd+4x-2
When subtracting polynomials, use the additive inverse, then combine like terms.
For example:
(x3-2x2nd+2)-(x4-2x3rd-3x2nd)
(x3-2x2nd+2)+(-x4+2x3rd+3x2nd)
-x4+3x3rd+x2+2
To subtract in the vertical form,
(4x3rd+2x2nd-2x-3)-(2x3rd-3x2nd+2)
4x3rd+2x2nd-2x-3
-2x3rd+3x2nd+0x-2
------------------
2x3rd+5x2nd-2x-5
-Adam D'Jamily, Period 6
Period 2: Gilbert Z.
Period 3:
Period 4: Tsubasa K. Brad L.
Period 5: Sindy L.
Period 6: Adam D.
Unknown#: Matt
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