Question

the value of (a+b)^2+(a-b)^2

Answer 1

Answer:

2 (a^2 + b^2)

Step-by-step explanation:

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

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

= 2a^2 + 2b^2

= 2 (a^2 + b^2) Ans.

Answer 2

Answer:

${(a + b)}^{2} + {(a - b)}^{2} \\ = {a}^{2} + {b}^{2} + 2ab + {a}^{2} + {b}^{2} - 2ab \\= \boxed{\underline{\underline{2({a}^{2} + {b}^{2})}}}$