The solution to 2x2 – 11 = 87 is 7 or –72 + 2i or 2 – 2i12 or –2.

Add 11 to both sides: 2x² = 98. Divide by 2 to get x² = 49, so x = 7 or x = −7. Choice A, “7 or −7,” gives both solutions.

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