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Nonlinear Equations in One Variable and Systems of Equations

SAT Math· difficulty 4/5

Which is a factor of p(x)=x3−7x+6p(x) = x^3 - 7x + 6?

  • A

    x−1x - 1

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  • B

    x+3x + 3

  • C

    x−2x - 2

  • D

    x−4x - 4

Explanation

p(1)=1−7+6=0p(1) = 1 - 7 + 6 = 0, so x−1x - 1 is a factor.

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