maria5875 maria5875

27-12-2020
Mathematics

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If f(x)=x^2and g(x)=6x+4,for which value of x does (f+g) =0

If fxx2and gx6x4for which value of x does fg 0 class=

Respuesta :

ChoiSungHyun ChoiSungHyun

27-12-2020

Step-by-step explanation:

Here f(x) = x² - 2x instead of f(x) = x². (typing error)

When (f + g)(x) = 0,

f(x) + g(x) = x² + 4x + 4 = 0.

Therefore (x + 2)² = 0, we have

x = -2.

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