Question

factorise 4a^2b^2 -(a^2+b^2-c^2)​

Answer 1

Answer:

(a^ +b^−c^) 2 −4a^b^

⇒(a^ +b^−c^)^−(2ab)^

⇒(a^+b^−c^+2ab)(a^+b^−c^−2ab)