Question

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Answer 1

Resposta:

Explicação passo-a-passo:

P(-2)=-3.(-2)³+7(-2)²-2(-2)+20

P(-2)=-3.(-8)+7.4+4+20

P(-2)=-24+28+4+20

P(-2)=4+4+20

P(-2)=28

P(4)=-3.(4)³+7.4²-2.4+20

P(4)=-3.64+7.16-8+20

P(4)=-192+112-8+20

P(4)=-80-8+20

P(4)=-88+20

P(4)=-60

5.P(-2) - 6. P(4)=

5.28 -6.(-60)=

140+360=

500