If a = 3 and b = -2, find the value of a² - 2b.
A5
B1
C7
D13CORRECT
Common EntranceMathematicsAlgebra
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Why the answer is D, and why the others tempt you.
a² = 9 and 2b = -4. So a² - 2b = 9 - (-4) = 9 + 4 = 13.
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