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Nonlinear Functions

SAT Math· difficulty 3/5

Solve: 52x−1=1255^{2x-1} = 125.

  • A

    55

  • B

    22

    check_circle
  • C

    11

  • D

    33

Explanation

125=53⇒2x−1=3⇒x=2125 = 5^3 \Rightarrow 2x - 1 = 3 \Rightarrow x = 2.

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