因式分解 25(a-b)^2+10(a-b)+1

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因式分解25(a-b)^2+10(a-b)+1因式分解25(a-b)^2+10(a-b)+1因式分解25(a-b)^2+10(a-b)+1令a-b=y即25y^2+10y+1=(5y+1)^2=(5a

因式分解 25(a-b)^2+10(a-b)+1
因式分解 25(a-b)^2+10(a-b)+1

因式分解 25(a-b)^2+10(a-b)+1
令a-b=y
即25y^2+10y+1=(5y+1)^2=(5a-5b+1)^2

25(a-b)^2+10(a-b)+1
=(5a-5b+1)²

25(a-b)^2+10(a-b)+1
=(5(a-b))²+2*(5(a-b))+1
=(5(a-b)+1)²
=(5a-5b+1)²