Question

a squre plus b square equal to

Answer 1

Answer:

(A²+B²) = (A+B)² + 2AB.

Answer 2

${a}^{2} + {b }^{2} = ( {a + b)}^{2} - 2ab \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = ( {a - b)}^{2} + 2ab$
Hope this helps you