Question

a(a-1)-b(b-1) factorise it pls who ever does will be mentioned as brainliest ​

Answer 1

Answer:

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

Step-by-step explanation:

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

=

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

a^2-b ^2-a+b

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

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