Question

if p=-2 find the value of -30²+8p+7​

Answer 1

Answer:

-30^2 + 8(-2) +7

=900-16+7

=891

Answer 2

Step-by-step explanation:

Correct Question :

• if p = -2 find the Value of -3p² + 8p + 7

Given :

• p = - 2

To Find :

• find the Value of -3p² + 8p + 7

Solution :

According to the Question :

$\sf \: : \implies \: \: \: \: \: \: \: \: \: \: \: \: \: \: - 3 {p}^{2} + 8p + 7$

Substitute all Values :

$\sf \: : \implies \: \: \: \: \: \: \: \: \: \: \: \: \: \: - 3 \times {( - 2)}^{2} + 8 \times - 2 + 7 \\ \\ \\ \sf \: : \implies \: \: \: \: \: \: \: \: \: \: \: \: \: - 3 \times 4 - 16 + 7 \\ \\ \\ \sf \: : \implies \: \: \: \: \: \: \: \: \: \: \: \: \: \: - 12 - 9 \\ \\ \\ \sf \: : \implies \: \: \: \: \: \: \: \: \: \: \: \: \: \: - 21$

• Hence the answer is -21