Question

Expand i) (x-7)(x+2)

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Answer 1

Answer:

x^2-7x+2x-14

= x^2-5x-14

Answer 2

Answer:

(x-7)(x+2) = [(x+(-7) (x+2)]

${x}^{2} + ( - 7 + 2)x + ( - 7)(2)$

${x}^{2} - 5x + 14$

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