Q. f(x)=x3−4x2+3x−12The function f is shown. If x−4 is a factor of f, what is the value of f(4)?Choose 1 answer:(A) −12(B) 0(C) 12(D) 64
Calculate f(4): If x−4 is a factor of the polynomial f(x), then by the Factor Theorem, f(4) should be equal to 0. Let's calculate f(4) to confirm this.
Substitute x=4: Substitute x=4 into the polynomial f(x)=x3−4x2+3x−12.f(4)=(4)3−4⋅(4)2+3⋅(4)−12
Simplify the expression: Calculate the value of f(4).f(4)=64−4×16+3×4−12f(4)=64−64+12−12
Simplify the expression: Calculate the value of f(4).f(4)=64−4×16+3×4−12f(4)=64−64+12−12 Simplify the expression.f(4)=0
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