Question

Seja P(x)=$x^{5}$-3$x^{4}$+2x²+x-5, o valor de P(-2) é:

Answer 1

P(-2)=(-2)^5 - 3*(-2)^4 + 2(02)^2 - 2 - 5
P(-2) = -32 - 48+8 - 2 - 5
P(-2) =  -80 + 8 -7
P(-2) = -79

Answer 2

Bom dia 

P(x) = x^5 - 3x^4 + 2x² + x - 5

P(-2) = -32 - 3*16 + 2*4 - 2 - 5 
P(-2) = -32 - 48 - 2 - 5 + 8 = -79