Question

explain the formula of ( a² + b² )

Answer 1

Hi , there !!!!

a² + b² = ( a+ b )² - 2ab




hope it helps you!!

thanks !!!

Answer 2

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