Question

if p(x)=x³+4x²-5x+7 find p(-2)​

Answer 1

P(-2)= (-2)³+4×(-2)²-5×-2+7

= -8+4×4+10+7

= -8+16+10+7

= -8+33

= 25

Answer 2

Step-by-step explanation:

p(x) = x³+4x²-5x+7

give the value -2 in x

p(-2) = x³+ 4x²- 5x + 7

= (-2)³ + 4 (-2)² - 5(-2) + 7

= -8 + 16 +10 + 7

= 8 + 17

= 25