a) -3x(2x - 1) = -6+ 3x
b) (2a - b)*8b + 8 = 16ab - 8 + 8 = 16ab
c) (4y - 2)*(-2y) = -8 + 4y
d) 5a(a + 2b) - 10ab = 5 + 10ab - 10ab = 5
Объяснение:
a) -3x(2x - 1) = -6
+ 3x
b) (2a - b)*8b + 8
= 16ab - 8
+ 8
= 16ab
c) (4y - 2)*(-2y) = -8
+ 4y
d) 5a(a + 2b) - 10ab = 5
+ 10ab - 10ab = 5![a^{2}](/tpl/images/1628/8812/4594d.png)
Объяснение: