10道因式分解十字法的习题 5
2个回答
展开全部
1.6ax+3ay-2bx-by
2.(x+1)(x+2)-x-10
3.x²y²-x²-y²+1
4.9-a²+4ab-4b²
5.(x²-x)²-18(x²-x)+72
6.a²-2ab+b²-3a+3b-10
7.25x²-10x+1
8.a²b²-ab-20
9.x²+25xy+150y²
10.9x²-6xy+y²-100
答案:
1.(2x+y)(3a-b)
2.(x+4)(x-2)
3.(y+1)(y-1)(x+1)(x-1)
4.(3+a-2b)(3-a+2b)
5.(x+3)(x-4)(x+2)(x-3)
6.(a-b-5)(a-b+2)
7.(5x-1)²
8.(ab+4)(ab-5)
9.(x+10y)(x+15y)
10.(3x-y+10)(3x-y-10)
.这些都是我做过的,放心吧,答案肯定对,不够还有!~~O(∩_∩)O~
2.(x+1)(x+2)-x-10
3.x²y²-x²-y²+1
4.9-a²+4ab-4b²
5.(x²-x)²-18(x²-x)+72
6.a²-2ab+b²-3a+3b-10
7.25x²-10x+1
8.a²b²-ab-20
9.x²+25xy+150y²
10.9x²-6xy+y²-100
答案:
1.(2x+y)(3a-b)
2.(x+4)(x-2)
3.(y+1)(y-1)(x+1)(x-1)
4.(3+a-2b)(3-a+2b)
5.(x+3)(x-4)(x+2)(x-3)
6.(a-b-5)(a-b+2)
7.(5x-1)²
8.(ab+4)(ab-5)
9.(x+10y)(x+15y)
10.(3x-y+10)(3x-y-10)
.这些都是我做过的,放心吧,答案肯定对,不够还有!~~O(∩_∩)O~
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