Question

Dados p(x)=-3x³+x²+x-2 e q(x)=x³-x²+x-1 calcule p(-1)+q(1)

Answer 1

 
 
 p(x)=-3x³+x²+x-2

 p(-1)= - 3(-1)³+(-1)²+(-1)-2 ==> -3(-1)+1-1-2==> 3-2==> 1
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q(1)= (1)³-(1)²+1-1 ==> 1-1+1-1==> 0
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p(-1)+q(1) ==> 1 + 0 ==> 1