What is the difference of the following polynomials?
(6x^3 – 2x^2 +4)
-(2x^3 + 4x^2 – 5)
________________
1.C
2.B
3.B
4.D
5.A
OOooOOh.... /)_-.... haha thx Damon
I need help.
got 1/5 bc of @badgirl -crying-
Here are the actual answers:
1. A: -5x^2-8x+2
2. B: 6j^2 + 3
3. C: 4x^3 - 2x^2 - 4x + 9
4. C: -2x^3 - 6x^2 + 9x
5. C: 8a - 2
If these aren't the answers for your quiz- am sorry
If they ARE the answers for your quiz- I hope I helped you out a little ^^
8x^3 + 2 x^2 - 1 I mean
Hey wait a minute.
I did your subtraction as you wrote it but maybe you meant difference between these two
(6x^3 – 2x^2 +4) and (2x^3 + 4x^2 – 5)
that is
(+6x^3 – 2x^2 +4)
(-2x^3 - 4x^2 + 5)
---------------------- add
4 x^3 - 6 x^2 + 9
badgirls answers are correct for connexus
To find the difference of the two polynomials, you need to subtract the second polynomial from the first polynomial.
First, distribute the negative sign to each term of the second polynomial. This means that every term in the second polynomial will change its sign.
So the second polynomial -(2x^3 + 4x^2 – 5) becomes -2x^3 - 4x^2 + 5.
Next, subtract each like term. Start with the highest degree term, which in this case is the term with x^3.
(6x^3 – 2x^2 + 4) - (-2x^3 - 4x^2 + 5)
= 6x^3 – 2x^2 + 4 + 2x^3 + 4x^2 - 5
Now, add up the coefficients of each like term:
= (6x^3 + 2x^3) + (-2x^2 + 4x^2) + (4 - 5)
= 8x^3 + 2x^2 - 1
So, the difference of the given polynomials is 8x^3 + 2x^2 - 1.