Question

(a + b + c)2 – (a - b + c)2​

Answer 1

Answer:

4ab+4bc

Step-by-step explanation:

Apply the formula (a square -b square)=(a+b) (a-b), to simplify the given expression. Now,(a+b+c)^2-(a-b+c)^2=(a+b+c+a-b+c) (a+b+c-(a-b+c)=(2a+2c)(a+b+c-a+b-c)=(2a+2c) (2b)=(4ab+4bc)