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Nonlinear Equations in One Variable and Systems of Equations

SAT Math· difficulty 4/5

Solve x2≤7x−12x^2 \le 7x - 12.

  • A

    3≤x≤43 \le x \le 4

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  • B

    x≤−4x \le -4 or x≥−3x \ge -3

  • C

    x≤3x \le 3 or x≥4x \ge 4

  • D

    −4≤x≤−3-4 \le x \le -3

Explanation

x2−7x+12≤0x^2 - 7x + 12 \le 0, (x−3)(x−4)≤0(x-3)(x-4) \le 0: 3≤x≤43 \le x \le 4.

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