Question

Find (3a2 - 2a + 4) - (a2 - 3a + 7) .

A. 2a^2 + a - 3

B. 2a^2 - 5a + 11

C. 4a^2 - 5a + 11

D. 4a^2 + a - 3

Answer 1

the answer is a

Explanation:

it just is

Answer 2

(3a^2 - 2a + 4) - (a^2 - 3a + 7) = (distribute the negative sign)
3a^2 - 2a +4 - a^2 + 3a - 7 = (add like terms)
2a^2 + a - 3
So, the answer is A!