1.x^2+x-4y^2-2y 2.(x^2+3x-2)(x^2+3x+4)-16

炉香2022-10-04 11:39:541条回答

1.x^2+x-4y^2-2y 2.(x^2+3x-2)(x^2+3x+4)-16
分解因式

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雄性夹竹桃 共回答了16个问题 | 采纳率81.3%
1.x^2+x-4y^2-2y
=(x+2y)(x-2y)+(x-2y)
=(x-2y)(x+2y+1)
2.(x^2+3x-2)(x^2+3x+4)-16
=(x^2+3x)^2+2(x^2+3x)-8-16
=(x^2+3x)^2+2(x^2+3x)-24
=(x^2+3x+6)(x^2+3x-4)
=(x^2+3x+6)(x+4)(x-1)
1年前

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