If $p = - 2,$ find the value of:
$- 2 p^{3} - 3 p^{2} + 4 p + 7$

Open in App

Solution

Given $p = - 2$
The value of $- 2 p^{3} - 3 p^{2} + 4 p + 7 = - 2 (- 2)^{3} - 3 (- 2)^{2} + 4 (- 2) + 7 = 16 - 12 - 8 + 7 = 23 - 20 = 3$

Suggest Corrections

Similar questions

If p = −2, find the value of:

(i) 4p + 7

(ii) −3p² + 4p + 7

(iii) −2p³ − 3p² + 4p + 7

Question 2 (iii)

If p = -2, find the value of:
$- 2 p^{3} - 3 p^{2} + 4 p + 7$

2 p^{3} - 3 p^{2} + 4 p - 5 - 6 p^{3} + 2 p^{2} - 8 p - 2 + 6 p + 8

p = - 2,

4 p + 7

Join BYJU'S Learning Program