What is the factored form of x2 – x – 2?
(x – 2)(x + 1)
(x + 2)(x + 1)
(x – 2)(x – 1)
(x + 2)(x – 1)

Answer

(x – 2)(x + 1)

Explanation

x² – x – 2

The product of this equation = 1 × -2

                                                = -2

Sum = -1

Find 2 numbers that you can multiply to get -2 and when you add the same numbers you get -1.

The numbers are: -2 and 1

x² – x – 2 =  x² + 1x - 2x – 2

                =   (x² + 1x) - (2x – 2)

                = x(x + 1) - 2(x + 1)

                  =  (x - 2)(x + 1)

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step-by-step explanation: