Nonlinear Equations in One Variable and Systems of Equations

SAT Math· difficulty 2/5

Solve: x=7\sqrt{x} = 7.

  • A

    7\sqrt{7}

  • B

    17\dfrac{1}{7}

  • C

    4949

    check_circle
  • D

    1414

Explanation

Square both sides: x=49x = 49.

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