P(x)=x^3+2x^2-7x+5, a=4

Question

P(x)=x^3+2x^2-7x+5, a=4

Answer 1

P(x) = 3x^3 + 2x^2 -7x + 5

x=4, then

P(4) = 3(4)^3 + 2(4)^2 -7(4) +5

= 3(64) +32 -28+5 = 192 +32 -23 = 192+9

P(4) = 201