Question

(x+1)(x - 2) = x² – X – 2

Answer 1

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

(x+1)(x - 2) = x² – X – 2. (A) (adevarat)

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