Question

7ху-42х+14х-84разложите на множители​

Answer 1

7(xy-6x+2x-12)...........

Answer 2

$7xy - 42x + 14x - 84 = 7xy - 7 \times 6x + 7 \times 2x - 7 \times 12 = 7(xy - 6x + 2x - 12) = 7(xy - 4x - 12)$