Algebramedium · Past Paper
What is the coefficient of x^2 in the expansion of (x+1)^3?
A1
B2
C3
D4
✓ Correct Answer: C — 3
(x+1)^3 = x^3 + 3x^2 + 3x + 1. The coefficient of x^2 is 3.
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✓ Correct Answer: C — 3
(x+1)^3 = x^3 + 3x^2 + 3x + 1. The coefficient of x^2 is 3.
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