Question

Simplify: (x+1)^3-3x(x+1)​

Answer 1

Answer:

refer to the image

hope it helps u

Answer 2

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$(x + 1)^{3} - 3x(x +1) \\ \\ {(x + y)}^{3} = {x}^{3} + 3xy(x + y) + {y}^{3} \\ \\ (x + 1)^{3} - 3x(x +1) \\ \\ {(x)}^{3} + 3(x)(1)(x + 1) + {1}^{3} - 3x(x + 1) \\ \\ {x}^{3} + 3x(x + 1) - 3x(x + 1) + 1 \\ \\ {x}^{3} + 1$

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