8
AssignmentMultiple Select

Completing The Square

Question 8 • AZ-Common Core Algebra II A

Solve (x – 3)2 = 49. Select the values of x.

Answer
A
–46
B
-4
C
10
D
52

Explanation

Take the square root of both sides: x − 3 = 7 or x − 3 = −7, since both 7² and (−7)² equal 49. Adding 3 gives x = 10 or x = −4, so the correct choices are 10 and −4.

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