Question

Find the sum or difference (10p - 4q^2 - q) - (q^2 - 7p + 9p^2)

A) 9p^2 - 5q^2 + 17p - q
B) -9p^2 - 3q^2 + 17p - q
C) -9p^2 - 5q^2 + 17p - q
D) -9p^2 - 5q^2 + 3p - q

Answer 1

C) -9p^2 - 5q^2 + 17p - q

Explanation:

(10p - 4q^2 - q) - (q^2 - 7p + 9p^2)

10p - 4q^2 - q - q^2 + 7p - 9p^2

10p + 7p - 4q^2 - q^2 -9p^2 - q

17p -5q^2 -9p^2 - q

-9p^2 - 5q^2 + 17p - q