Question

Simplify (a+b)sq. +(a-b) sq.

Answer 1

Answer:

2(a^2+b^2)

Step-by-step explanation:

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

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

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

Answer 2

Answer:

(a+b)2 + (a-b)2

(a2+2ab+b2)+(a2-2ab+b2)

a2+2ab+b2+a2-2ab+b2

2a2+2b2