Question

what is the rule of a square + b square​

Answer 1

$\huge\underline\mathfrak\purple{Answer}$

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

$<marquee>Follow me$

$<marquee>Mark as Brainlies$

Answer 2

Here is your answer user.