因式分解：2x^2-1/2y^2大家帮帮忙

因式分解：2x^2-1/2y^2大家帮帮忙
因式分解：2x^2-1/2y^2大家帮帮忙

因式分解：2x^2-1/2y^2大家帮帮忙
2x² - (1/2)y²
= (1/2)(4x² - y²)
= (1/2)(2x+y)(2x-y)
2x² - 1/(2y²)
= (1/2)(4x²-1/y²)
= (1/2)(2x+1/y)(2x-1/y)

2x^2 - 1/(2y^2)
= (1/2) * (4x^2 - y^2)
= (1/2) * (2x+y) * (2x-y)

（4x^2-y^2）/2
会了吧

2x^2-1/2y^2
=1/2(4x²-y^2)
=1/2(2x+y²望采纳