Question

(a+b) ² -( a-b) ²= ? a) -4ab b) 0 c) 2( a² + b²) d) 4ab ​

Answer 1

Answer:

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

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

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

Step-by-step explanation:

= 4ab is the answer

when you open the bracket other no. s cancel out

I hope you like my answer