Expand the expression using the Binomial Theorem.(x + 1)6
A. x6 + 6x5 + 30x4 + 120x3 + 360x2 + 720x + 720
B. x6 + 6x5 +30x4 + 120x3 + 30x2 + 6x + 1
C. x6 + 6x5 +15x4 + 20x3 + 15x2 + 6x + 1
D. x6 + 6x5 + 15x4 + 20x3 + 15x2 + 6x + 6
Answer: C
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