Question

Разложите на множители:

a) 5a(a+b)+2x(a+b) b)5x+5y-cx-cy

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Answer 1

$5a(a+b)+2x(a+b) = (a+b)(5a+2x)$

$5x+5y-cx-cy = 5(x+y)-c(x+y) = (x+y)(5-c)$