Question

If P(x)=x²+x+7 and Q(x)= 3x² -1, find Q( – 10).

Answer 1

Q(- 10) = 299

Explanation:

Q(- 10) = 3.(- 10)² - 1

= 3 . 100 - 1

= 300 - 1

= 299

=> Q(- 10) = 299