分解因式:8(x^2-2y^2)-x(7x+y)+xy

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分解因式:8(x^2-2y^2)-x(7x+y)+xy

8(x^2-2y^2)-x(7x+y)+xy
=8x^2-16y^2-7x^2-xy+xy
=x^2-16y^2
=(x-4y)(x+4y)

8(x^2-2y^2)-x(7x+y)+xy
=8x^2-16y^2-7x^2-xy+xy
=x^2-16y^2
=(x+4y)(x-4y)或(x-4y)(x+4y) 都行

8(x^2-2y^2)-x(7x+y)+xy
=8x^2-16y^2-7x^2-xy+xy
=x^2-16y^2
=(x-4y)(x+4y)

:8(x^2-2y^2)-x(7x+y)+xy
=8x²-16y²-7x²-xy+xy
=x²-16y²
=(x+4y)(x-4y)

8(x^2-2y^2)-x(7x+y)+xy
=8x²-16y²-7x²-xy+xy
=x²-16y²
=(x+4y)(x-4y)

8(x^2-2y^2)-x(7x+y)+xy
=8x^2-16y^2-7x^2-xy+xy
=x^2-16y^2
=(x-4y)(x+4y)