分解因式a^2b-5a^2+5a-ab

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分解因式a^2b-5a^2+5a-ab

分解因式a^2b-5a^2+5a-ab
分解因式a^2b-5a^2+5a-ab

分解因式a^2b-5a^2+5a-ab
a^2b-5a^2+5a-ab
=a^2b-ab-5a^2+5a
=ab(a-1)-5a(a-1)
=(a-1)(ab-5a)
=a(a-1)(b-5)

a^2b-5a^2+5a-ab
= a (ab -5a+5-b)
= a [ a(b-5) - (b-5)]
= a (a-1)(b-5)

a²b-5a²+5a-ab
=ab(a-1)-5a(a-1)
=(ab-5a)(a-1)
=a(b-5)(a-1)