64
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Completing The Square

Question 64 • AZ-Common Core Algebra II A

The solution to 2x2 – 11 = 87 is .

Answer
A
7 or –7
B
2 + 2i or 2 – 2i
C
12 or –2

Explanation

Add 11 to both sides: 2x² = 98. Divide by 2 to get x² = 49, so x = 7 or x = −7. The correct choice is “7 or −7.”

AI-written and checked against the verified answer.

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