Question

Раскройте скобки
1)-3(4+5m-6n)
2)-0.2(-14t+z-25y)
3)(-3.1x+7.8y-9.6)*0.1
4)(0.7x-0.6y+0,5z)*(-1.5p)

Answer 1

-3(4+5m-6n)= -12-15m+18n
-0.2(-14t+z-25у)= 2.8t-0.2z+5у
(-3,1х+7,8у-9,6)*0,1=-0,31х+0,78у-0,96
(0,7х-0,6у+0,5z)*(-1,5Р)=-1,05хp+0.9уp-0.75zp

Answer 2

1) -12-15m+18n
2) 2,8t-0,2z+5y
3)-0,31x+0,78y-0,96
4)-1,05xp+0,9py-0,75zp