Nonlinear Equations in One Variable and Systems of Equations

SAT Math· difficulty 4/5

A picture has area 48 sq in. Its length is 2 in more than its width. Find the width.

  • A

    88

  • B

    1010

  • C

    66

    check_circle
  • D

    44

Explanation

w(w+2)=48w(w+2) = 48, w2+2w48=0w^2 + 2w - 48 = 0, (w6)(w+8)=0(w-6)(w+8) = 0, w=6w = 6.

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