Question 73325
3X+3Y+AX+AY=3(X+Y)+A(X+Y=(3+A)(X+Y)
5(X+Y)+9(X+Y)=5+9(X+Y)=14(9X+Y)
8X^3-12X^2+6X-9=4X(2X-3)+3(2X-3)=(4X+3)(2X-3)
X^3+X^2+2X=2=X^2(X+1)+2X(X+1)=(X^2+2X)(X+1)
2X^3-8X^2-9X+36=2X^2(X-4)-9(X-4)=(2X^2-9)(X-4)