Question

find the value of p (x) = 3x² + x + 7 when x = -2​

Answer 1

Answer:

P (-2)= 3(-2)*2 + (-2) + 7

= 3 x 4 - 2 + 7

12 - 2 +7

= 17

Hope it's helpful to you.

According to my point of view this is the correct answer.

Answer 2

Answer:

$p(x) = {3x}^{2} + x + 7 \\ p(x) = 3 \times { (- 2)}^{2} + ( - 2) + 7 \\ \\ = 3 \times 4 - 2 + 7 \\ \\ = 12 + 5 \\ = 17$

Hence, 17 is the value of p(x).