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Nonlinear Equations in One Variable and Systems of Equations

SAT Math· difficulty 3/5

Solve 2x2+7x+3=02x^2 + 7x + 3 = 0.

  • A

    x=−3,1/2x = -3, 1/2

  • B

    x=3,1/2x = 3, 1/2

  • C

    x=3,−1/2x = 3, -1/2

  • D

    x=−3,−1/2x = -3, -1/2

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Explanation

(2x+1)(x+3)=0(2x+1)(x+3) = 0, so x=−1/2x = -1/2 or x=−3x = -3.

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