\(a,4x^2y-2xy^2=2xy\left(2x-y\right)\\ d,5x\left(3-2x\right)-7\left(2x-3\right)=5x\left(3-2x\right)+7\left(3-2x\right)=\left(3-2x\right)\left(5x+7\right)\\ g,\left(x+2\right)\left(x^2-2x\right)-3x-6=x\left(x+2\right)\left(x-2\right)-3\left(x+2\right)=\left(x+2\right)\left(x^2-2x-3\right)=\left(x+2\right)\left[\left(x^2-3x\right)+\left(x-3\right)\right]=\left(x+2\right)\left[x\left(x-3\right)+\left(x-3\right)\right]=\left(x+2\right)\left(x-3\right)\left(x+1\right)\)
\(l,x^3-2x^2+2x-1=\left(x^3-x^2\right)-\left(x^2-x\right)+\left(x-1\right)=x^2\left(x-1\right)-x\left(x-1\right)+\left(x-1\right)=\left(x^2-x+1\right)\left(x-1\right)\\ p,16x^2-\left(x+1\right)^2=\left(4x\right)^2-\left(x+1\right)^2=\left(4x-x-1\right)\left(4x+x+1\right)=\left(3x-1\right)\left(5x+1\right)\)
