Question

a square +bsquare full sutra

Answer 1

hi
here is your answer

a²+b²=(a+b)²-2ab
a²+b²=(a-b)²+2ab

hope it helps u

Answer 2

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

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

Step-by-step explanation:

We have,

$a^{2} +b^{2}$

To write the formulas of $a^{2} +b^{2} =?$

We know that,

$(a+b)^{2} =a^{2} +b^{2} +2ab$

⇒ $a^{2} +b^{2} = (a+b)^{2}-2ab$

And,

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

⇒$a^{2} +b^{2} = (a-b)^{2}+2ab$

∴  $a^{2} +b^{2}=(a+b)^{2}-2ab$

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

Hence, $a^{2} +b^{2}=(a+b)^{2}-2ab$ and

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