Question

calcule o valor de f(x)=x2-5x+2 para a) x=-4 b)x=-1 c)x=3/2 d) x=√2

Answer 1

Ola Mara

f(x) = x² - 5x + 2 

f(-4) = 16 + 20 + 2 = 38 

f(-1) = 1 + 5 + 2 = 8

f(3/2) = 9/4 - 30/4 + 8/4 = -13/4 

f(√2) = 2 - 5√2 + 2 = 4 - 5√2

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