Harlon wrote the equation A=18 (x^2+1) to find the area of a rectangle that has a length of x^2+1 and a width of 18. He solved for x and got x = ±√ (A/18 - 1). Which of the following is an equivalent equation for x?
A. x = ±√ (A-18/18)
B. x = ±√ (A+18/18)
C. x = ±√ (A-36)
D. x = ±√ (A+36)
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Home » Mathematics » Harlon wrote the equation A=18 (x^2+1) to find the area of a rectangle that has a length of x^2+1 and a width of 18. He solved for x and got x = ±√ (A/18 - 1). Which of the following is an equivalent equation for x? A. x = ±√ (A-18/18) B.