Question

Simplify the expression: A + 2B, where A = -2q^2 + 10 and B = 2q - 10.

Answer 1

- 2q² + 4q - 10

Explanation:

given the expression

A+ 2B

substitute A = - 2q² + 10 and B = 2q - 10 into the expression

= - 2q² + 10 + 2(2q - 10) ← distribute parenthesis by 2

= - 2q² + 10 + 4q - 20 ← collect like terms

= - 2q² + 4q - 10