Question

a (a minus b) close + b (a minus b) close​

Answer 1

Answer:

write ur question correctly

Answer 2

Answer:

☆ Givne - a(a - b) + b( a- b)

☆ To find - solution

☆ Solution

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

a^2 - ab + ab - b^2

a^2 - b^2

Using identity a ^2 - b^2 =( a+ b )(a -b)

hence , the answer is (a+ b)(a-b)

More to know

Some identity

(X + a )(X + b) = x^2 +( a+ b)X + ab

(a- b)^2 = a^2 + b^2 + 2ab

(a+ b)^2 = a^2 + b^2 + 2ab

Note - Sometime reverse of identity is also asked ex. in above case.