senitybug
senitybug
12-10-2017
Mathematics
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What is this answer??
Respuesta :
choixongdong
choixongdong
12-10-2017
(f+g)(x) = x^2 -2x +6x + 4
(f+g)(x) = x^2 + 4x + 4
(f+g)(x) = (x + 2)^2
(x + 2)^2 = 0
x + 2 = 0
x = -2
answer
B. -2
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