Question

f(x) = 5x² + 2
defina f(3) e f(-1)

Answer 1

a) f(3) = 5*3² + 2 = 5*9 + 2 = 45+2 = 47

b) f(-1) = 5*(-1)² + 2 = 5*1 + 2 = 5+2 = 7

Answer 2

f(x) = 5x² + 2

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F(3) = 5(3)² + 2

F(3) = 5(9) + 2

F(3) = 45 + 2

$\boxed{F(3) = 47}$

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F(-1) = 5(-1)² + 2

F(-1) = 5(1) + 2

$\boxed{F(-1) = 7}$