Question

упростите выражение
12*a*5*2
4b*25*7
15c*9*4
9x+7x+3x
15y-6y+8y
52x-16x+9x
8(x+6)-28
7(2x+3)-10x
4(9x+7)-26x

Answer 1

12*a*5*2= 120а
4b*25*7=4b*175=700b
15c*9*4=15c*36=540c
9x+7x+3x=19x
15y-6y+8y=17y
52x-16x+9x=45x
8(x+6)-28=8x+48-28=8x+20
7(2x+3)-10x= 14x+21-10x=4x+21
4(9x+7)-26x=36x+28-26x=10x+28