Question

Разложить на множители

Answer 1

1) (a+b) ( 5a-5b-a-b) = (a+b) (4a-4b) = 4 (a+b) (a-b)
2) (x-y) (3x-3y+x+y)= (x-y) (4x-2y) = 2 (x-y) (2x-y)
3) ( m+n)²·(m+n-m)= n ( m+n)²
4) (i-k)² ( i-k+i) = (i-k)² (2i-k)

Answer 2

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