1.(x-5)(x+4)=0 2.(1.3x-1.2)(4+8x)=0
3.(12x+3)(-8x-2-4x+2x+5)=0
4.(5x-7x-15-x+21)(-18x+0.2)=0
5.(x-3)(x+2)=0
6.(1.7-1.8y)(6y+3)=0
7.(6-1.2x)(-x-4x+10x-15)=0

7 класс

fatima52    3   18.09.2021 15:32    0