Question

Data a função f (x)=2x ao quadrado +5x-2 calcule f (0) e f (-2)

Answer 1

f(x) = 2x²+ 5x - 2 

f(0) = 2.0² + 5.0 - 2

f(0) = 2.0 + 0 - 2

f(0) = - 2

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f(-2) = 2.(-2)² + 5.(-2) - 2

f(-2) = 2.4 - 10 - 2

f(-2) = 8 - 12 

f(-2) = - 4                       ok

Answer 2

f(x)=2x^2+5x-2 F(0) 2(0)^2+5(0)-2 0+0-2 -2 F(-2) 2(-2)^2+5(-2)-2 2.4-10-2 8-12 -4