Algebraeasy · Past Paper
What is the coefficient of x in the expansion of (x + 2)^2?
A2
B4
C1
D0
✓ Correct Answer: B — 4
(x+2)^2 = x^2 + 2(x)(2) + 2^2 = x^2 + 4x + 4. The coefficient of x is 4.
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