Question

what is the answer i’m dumb ‍♀️‍♀️

Answer 1

Ah, subtracting polynomials.

The answer requires you to find the difference of $7g^{2}  + 5g - 1$ and $3g^{2}  - 4g + 2$.

$7g^2 + 5g - 1\\ - 3g^2 - 4g + 2$

$7g^2 - 3g^2 = 4g^2$

$5g - (-4g) = 5g + 4g = 9g$

$-1 - 2 = -3$

Then, just put everything together.

$4g^2 + 9g - 3$

So, the answer would be choice c.

Answer 2

Answer:

C. 4g^2+9g-3

Step-by-step explanation:

(7g^2+5g-1)-(3g^2-4g+2)

subtract each term individually

(7g^2-(3g^2))=(4g^2)

(5g-(-4g))=(5g+4g)=(9g)

((-1)-(2))=(-3)

((7g^2-(3g^2))+(5g-(-4g))+((-1)-2))

4g^2+9g-3