Question

simplify (a+b)^2+(a-b) ^2​

Answer 1

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

Answer 2

Answer:

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

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

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