Question

who answer the question
${a}^{2} + {b}^{2} - {( \: )}^{2}$
??????????
?????​

Answer 1

Answer:

$heya$

It's

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

Answer 2

heyy

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