35ах + 24xy - 20ay - 42x² = 7x(5a + 4y) - 10a(2y + 7x= 7x(5a + 4y) - 10a(7x + 2y= 7x(5a + 4y) - 10a(7x + 2y= (7x - 10a)(5a + 4y)
35ах + 24xy - 20ay - 42x² = 7x(5a + 4y) - 10a(2y + 7x
= 7x(5a + 4y) - 10a(7x + 2y
= 7x(5a + 4y) - 10a(7x + 2y
= (7x - 10a)(5a + 4y)