题目下列从左到右变形,是因式分解的是（ ）A.2x3−4x2+4=2x(x2−2x+2)2x^{3}-4x^{2}+4=2x(x^{2}-2x+2)2x3−4x2+4=2x(x2−2x+2)B.(x+3y)(x−3y)=x2−9y2(x+3y)\left(x-3y\right)=x^{2}-9y^{2}(x+3y)(x−3y)=x2−9y2C.−2x3y+2xy3=−2xy(x+y)(x−y)-2x^{3}y+2xy^{3}=-2xy\left(x+y\right)\left(x-y\right)−2x3y+2xy3=−2xy(x+y)(x−y)D.a(2a2+5ab−b2)=2a3+5a2b−ab2a(2a^{2}+5ab-b^{2})=2a^{3}+5a^{2}b-ab^{2}a(2a2+5ab−b2)=2a3+5a2b−ab2知识点：因式分解的意义章节：数与式 / 因式分解
