Question

As raizes da funçao f(x)=x2+3x-40=0

Answer 1

Resposta:

$x^{2} +3x-40=0\\\\9 - 4 . 1 . - 40\\9 + 160\\160\\\\\frac{-3 +-\sqrt{169} }{2 } \\\\\frac{-3 - 13}{2} = \frac{-16}{2} = \ -8 \\\\\frac{-3 +13}{2} = \frac{10}{2} = \ 5$

Answer 2

Resposta:

A) S = {- 8, 5}

Explicação passo-a-passo:

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