Question

a ² + B^2 simply by using identity​

Answer 1

${a}^{2} + {b}^{2} \\ \\ main \: formula - ( {a + b})^{2} - 2ab \\ \\ factorisation \: formula - ( {a - b})^{2} + 2ab$

Answer 2

Step-by-step explanation:

a²+b²

= (a+b)²-2ab

Hope it helps you!!!