因式分解25a²b²-10ab+125a²b²-10ab+1,因式分解还有36a²-(a+9)²。16-8(x+y)+(x-y)²因式分解
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因式分解25a²b²-10ab+125a²b²-10ab+1,因式分解还有36a²-(a+9)²。16-8(x+y)+(x-y)²因式分解
因式分解25a²b²-10ab+1
25a²b²-10ab+1,因式分解
还有36a²-(a+9)²。16-8(x+y)+(x-y)²因式分解
因式分解25a²b²-10ab+125a²b²-10ab+1,因式分解还有36a²-(a+9)²。16-8(x+y)+(x-y)²因式分解
﹙1﹚25a²b²-10ab+1=﹙5ab-1﹚²
﹙2﹚ 36a²-(a+9)²=﹙6a-a-9﹚﹙6a+a+9﹚=﹙5a-9﹚﹙7a+9﹚
﹙3﹚16-8(x+y)+(x-y)²=﹙4-x+y﹚².
(5ab-1)^2
(5ab-1)²