If f(x) = x2 – 2x and g(x) = 6x + 4, for which value of x does (f + g)(x) = 0?
Asked by maham237 @ in Mathematics viewed by 424 People
Answered by maham237 @
F(x) = x^2 - 2x and g(x) = 6x + 4
(f + g)(x) = x^2 - 2x + 6x + 4 = x^2 + 4x + 4
(f + g)(x) = 0 => x^2 + 4x + 4 = 0
(x + 2)^2 = 0
x = -2
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