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x^2-10xy+25y^2-3x+15y
题目详情
x^2-10xy+25y^2-3x+15y
▼优质解答
答案和解析
是分解因式吗?
若是这样,
原式=[x^2-2×(x)×(5y)+(5y)^2]-3(x-5y)
=(x-5y)^2-3(x-5y)
=(x-5y)(x-5y-3)
若是这样,
原式=[x^2-2×(x)×(5y)+(5y)^2]-3(x-5y)
=(x-5y)^2-3(x-5y)
=(x-5y)(x-5y-3)
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