Question

e) ( xy- x (y + 10)
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Answer 1

$(xy - x)(y + 10) \\ (xy \times y) + (xy \times 10) - (x \times y) - (x \times 10) \\ x {y}^{2} + 10xy - xy - 10x \\ x {y}^{2} + 9xy - 10x$