Question

If p= 2 find the value of; -2p3 -3p2 +4p+7​

Answer 1

The answer to this problem is:

-13

Answer 2

$= - 2 {p}^{3} - 3 {p}^{2} + 4p + 7$

$= - 2 {(2)}^{3} - 3 {(2)}^{2} + 4(2) + 7$

$= - 2( - 8) - 3(4) + 8 + 7$

$= 16 - 12 + 15$

$= 4 + 15$

$= 19$