Solve the problem.
-The square of the difference between a number and 9 is 9. Find the number(s).
A)6, 12
B)78, 84
C)12
D)90

Name: Solve the problem. -The square of the difference between a number and 9 is 9. Find the number(s). A)6, 12 B)78, 84 C)12 D)90
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Question

Quizplus · Accepted Answer

The equation can be written as (x - 9)^2 = 9. Solving this, we get two solutions: x - 9 = 3 and x - 9 = -3, which give x = 12 and x = 6, respectively.

Solve the Problem. -The Square of the Difference Between a Number and 9