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20-01-2017
Mathematics

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f(x)=2x^2-4x-3 and g(x)=(x-4)(x+4) find f(x)-g(x)

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20-01-2017

F(x)=2x^2-4x-3
g(x)=(x-4)(x+4) = x^2 - 16

f(x)-g(x) = 2x^2 -4x -3 - (x^2 - 16)
f(x)-g(x) = 2x^2 -4x -3 - x^2 + 16
f(x)-g(x) = x^2 - 4x + 13

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