Question

Evaluate the expression: −8q^2−4q+1, when q=−5.

Answer 1

- 179

Explanation:

- 8q² - 4q + 1 ← substitute q = - 5 into the expression

= - 8(- 5)² - 4(- 5) + 1

= - 8(25) + 20 + 1

= - 200 + 21

= - 179