Question

please answer briefly
I will mark your answer as brainlist ​

Answer 1

Given, a= 2 and b= -2

Let's substitute the value in the given equation

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

$= 4 + 4$

Since

${ - 2}^{2} = - 2 \times - 2 = 4$

Therefore

${a}^{2} + {b}^{2} = 8$

The answer is option B

Hope it helps :)