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Nonlinear Equations in One Variable and Systems of Equations

SAT Math· difficulty 3/5

Solve: x−2=5\sqrt{x} - 2 = 5.

  • A

    x=9x = 9

  • B

    x=7x = 7

  • C

    x=49x = 49

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  • D

    x=25x = 25

Explanation

x=7⇒x=49\sqrt{x} = 7 \Rightarrow x = 49.

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