因式分解2x^2+4x-6
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因式分解2x^2+4x-6
=2(x^2+2x-3)
=2(x+3)(x-1)
=2(x2+2x-3)
=2(x+3)(x-1)
(2x-2)(x+3)
2x^2+4x-6
=2(x+3)(x-1)
=2x^2-2+4x-4
=2(x+1)(x-1)+2×2×(x-1)
=2(x+3)(x-1)
望采纳
因式分解2x^2+4x-6
=2(x^2+2x-3)
=2(x+3)(x-1)
=2(x2+2x-3)
=2(x+3)(x-1)
(2x-2)(x+3)
2x^2+4x-6
=2(x+3)(x-1)
=2x^2-2+4x-4
=2(x+1)(x-1)+2×2×(x-1)
=2(x+3)(x-1)
望采纳