Question

factorize a(a-1)-b(b-1)
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Answer 1

Step-by-step explanation:

$a(a - 1) - b(b - 1)$

${a}^{2} - a - {b}^{2} - b$

$0$

$thanks$

Answer 2

Answer:

a(a-1)-b(b-1)

Step-by-step explanation:

a*a=$a^{2}$

a*-1= = -a

-b*b=  -$b^{2}$

-b*-1= b

then the whole answer is

$a^{2}$-a-$b^{2}$+b

have a good day