因式分解x^2-6xy+9y^2-10x+30y+25

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因式分解x^2-6xy+9y^2-10x+30y+25因式分解x^2-6xy+9y^2-10x+30y+25因式分解x^2-6xy+9y^2-10x+30y+25x^2-6xy+9y^2-10x+30

因式分解x^2-6xy+9y^2-10x+30y+25
因式分解x^2-6xy+9y^2-10x+30y+25

因式分解x^2-6xy+9y^2-10x+30y+25
x^2-6xy+9y^2-10x+30y+25
=(x-3y)^2-10(x-3y)+25
=(x-3y-5)^2