Expand (x + 1) using an identity.
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Answered by
10
Answer:
(x + 1)³ = (x)³ + (1)³ + 3 (x)(1)(x + 1)
= x³ + 1 + 3x (x + 1)
= x³ + 1 + 3x² + 3x
= x³ + 3x² + 3x + 1
Answered by
75
(x + 1)³ = (x)³ + (1)³ + 3 (x)(1)(x + 1)
= x³ + 1 + 3x (x + 1)
= x³ + 1 + 3x² + 3x
= x³ + 3x² + 3x + 1
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