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f(x)=x^(4)+4x^(3)-7x^(2)-22 x+24
The function 
f is shown. If 
x+3 is a factor of 
f, what is the value of 
f(-3) ?
Choose 1 answer:
(A) -3
(B) 0
(C) 3
(D) 24

f(x)=x4+4x37x222x+24 f(x)=x^{4}+4 x^{3}-7 x^{2}-22 x+24 \newlineThe function f f is shown. If x+3 x+3 is a factor of f f , what is the value of f(3) f(-3) ?\newlineChoose 11 answer:\newline(A) 3-3\newline(B) 00\newline(C) 33\newline(D) 2424

Full solution

Q. f(x)=x4+4x37x222x+24 f(x)=x^{4}+4 x^{3}-7 x^{2}-22 x+24 \newlineThe function f f is shown. If x+3 x+3 is a factor of f f , what is the value of f(3) f(-3) ?\newlineChoose 11 answer:\newline(A) 3-3\newline(B) 00\newline(C) 33\newline(D) 2424
  1. Factor Theorem Application: If x+3x+3 is a factor of f(x)f(x), then by the Factor Theorem, f(3)f(-3) should be equal to 00. We will substitute x=3x = -3 into the polynomial to verify this.\newlineCalculation: f(3)=(3)4+4(3)37(3)222(3)+24f(-3) = (-3)^4 + 4*(-3)^3 - 7*(-3)^2 - 22*(-3) + 24\newline=8110863+66+24= 81 - 108 - 63 + 66 + 24\newline=8110863+90= 81 - 108 - 63 + 90\newline=81171+90= 81 - 171 + 90\newline=90+90= -90 + 90\newline$= \(0\)

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