Question

5. Sendo f: R→R definida por f(x) = x2 + 4x, calcule:
a) f(3) b) f(-2) 4/

Answer 1

Oieee

Bom,

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f(x) = x² + 4x

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f(3) = (3)² + 4(3)

9 + 12

21

f(3) = 21

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f(-2) = (-2)² + 4(-2)

4 + (-8)

-4

f(-2) = -4

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Qualquer dúvida me avise

A$$: MarcosPCV