\(a,6a^2b+9ab^2\)
\(=3ab\left(2a+3b\right)\)
\(b,5x^3y^2-15x^2y^3\)
\(=5x^2y^2\left(x-3y\right)\)
\(c,2x\left(x+1\right)-3y\left(x+1\right)\)
\(=\left(x+1\right)\left(2x-3y\right)\)
\(d,\left(x-y\right)^2-x\left(x-y\right)\)
\(=\left(x-y\right)\left(x-y-x\right)\)
\(=-y\left(x-y\right)\)
\(e,y\left(x-1\right)-x\left(1-x\right)\)
\(=y\left(x-1\right)+x\left(x-1\right)\)
\(=\left(x-1\right)\left(y+x\right)\)
\(g,2a\left(a-b\right)+2b\left(b-a\right)\)
\(=2a\left(a-b\right)-2b\left(a-b\right)\)
\(=\left(2a-2b\right)\left(a-b\right)\)
\(=2\left(a-b\right)^2\)
#Urushi☕
a: 6a^2b+9ab^2
=3ab*2a+3ab*3b
=3ab(2a+3b)
b: 5x^3y^2-15x^2y^3
=5x^2y^2*x-5x^2y^2*3y
=5x^2y^2(x-3y)
c: 2x(x+1)-3y(x+1)
=(x+1)(2x-3y)
d: =(x-y)(x-y-x)
=-y(x-y)
e: =y(x-1)+x(x-1)
=(x-1)(x+y)
g: =2a(a-b)-2b(a-b)
=(a-b)(2a-2b)
=2(a-b)^2
a)\(6a^2b+9ab^2\)=ab(6a+9b)
b)\(5x^3y^2-15x^2y^3\)=5\(x^2y^2\)(x-3y)
c)2x(x+1)-3y(x+1)=(x+1)(2x-3y)
d)\(\left(x-y\right)^2-x\left(x-y\right)\)=(x-y)(x-y-x)
e)y(x-1)-x(1-x)=(x-1)(y+x)
g)2a(a-b)+2b(b-a)=(a-b)(2a-2b)
