Home » If the function f(fx) = x3 + 2×2 + qx – 6 is divisible by…

If the function f(fx) = x3 + 2×2 + qx – 6 is divisible by…

If the function f(fx) = x3 + 2x2 + qx – 6 is divisible by x + 1, find q
  • A.
    -5
  • B.
    -2
  • C.
    2
  • D.
    5
Correct Answer: Option A
Explanation

x + 1 = 0, x = -1; f(x) = x3 + 2x2 + qx – 6
0 = -1 + 2 – q – 6
q = -5

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