x^2-3xy-10y^2怎么因式分解

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x^2-3xy-10y^2怎么因式分解x^2-3xy-10y^2怎么因式分解x^2-3xy-10y^2怎么因式分解x^2-3xy-10y^2=(x-5y)(x+2y)(x+2y)(x-5y)

x^2-3xy-10y^2怎么因式分解
x^2-3xy-10y^2怎么因式分解

x^2-3xy-10y^2怎么因式分解
x^2-3xy-10y^2
=(x-5y)(x+2y)

(x+2y)(x-5y)