2x(a-b)+a(a-b)=(а-b)(2x+a)
3x+3y+bx+by=(3x+3y)+( bx+by)=3(x+y)+b(x+y)=(x+y)
(3+b)
0,2y(5y²-1)(2y²-1)=
=0,2y(10y⁴-5y²-2y²+1)=
= 0,2y(10y⁴-7y²+1)=
3x-xy-3y+y²=(3x-xy)-(3y-y²)=x(3-y)-y(3-y)=(3-y)(x-y)
ax-ay+cy-cx-x+y=
=(ax-ay)+(cy-cx)-(x-y)=
=a(x-y)+c(y-x)-(x-y)=
=a(x-y)-c(x-y)-(x-y)=
=(x-y)(a-c-1)
1) 10х-1-15х>50х+1
Х<-2/55
2) -2х<=-6, х>=3
3) 4-4х+5х+40>=0, х>=-44
X+y-x²-xy=(x+y)-x(x+y)=(x+y)(1-x)
4ab²+5ab+a=4ab²+4ab+ab+a=4ab(b+1)+a(b+1)=(b+1)(4ab+a)=a(4b+1)(b+1)
(y-5)(y+11)=0
y-5=0 => y1=5
y+11=0 => y2=-1
t²+12t=0
t(t+12)=0
t1=0
t+12=0 => t2=-12
-x²+25=0
x²-25=0
(x-5)(x+5)=0
x-5=0 => x1=5
x+5=0 => x2=-5