Решить уравнения:а)Решить уравнения:
а) (2х+3)-2(5х-1)=(7х-1)-2(3х+11)
б) (2х+7)/3-(х-3)/2=4х
в) (2-3х)^2+(1+4x)^2=(5x-1)(5x+1)-4x
а) (2х+3)-2(5х-1)=(7х-1)-2(3х+11)
б) (2х+7)/3-(х-3)/2=4х
в) (2-3х)^2+(1+4x)^2=(5x-1)(5x+1)-4x
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2x+3-10x+2=7x-1-6x-22
-8x+5=x-23
-9x=-28
x=28/3
б) (2х+7)/3-(х-3)/2=4х
2(2x+7)-3(x-3)=24x
4x+14-3x+9=24x
x-24x=-23
-23x=-23
x=1
в) (2-3х)^2+(1+4x)^2=(5x-1)(5x+1)-4x
4-12x+9x^2+1+8x+16x^2=25x^2-1-4x
5-4x+25x^2=25x^2-1-4x