Question

Subtract and simplify:

(2x2 + 5x – 4) – (3x2 – 7x + 1)

A.
–x2 + 12x – 5

B.
–x2 – 2x – 3

C.
5x2 – 2x – 3

D.
x2 + 12x – 3

Answer 1

A

Answer 2

Ok, notice that the - sign is in ront of the parenthesis?
Multiply that sign with all terms in the parenthesis and then add like terms. SO you have.