Question

Expand and simplify (x - 1)(x + 2)(x - 1)

Answer 1

Answer:

$(x - 1)(x + 2)(x - 1)=(x-1)^{2}(x+2)$

Step-by-step explanation:

Use the product rule $x^{a} x^{b}=x^{a+b}$

Answer 2

Answer:

x^3 -3x + 2

Step-by-step explanation:

(x - 1)(x - 1) =

x^2 -2x + 1 (x+2) =

x^3 + 2x^2

      -2x^ - 4x

                  x + 2

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x^3 -3x + 2