Question

де
- - (-20) - (-as-41x44
2xt​

Answer 1

Answer:

$a^{2}$+$b^{2}$= 81

Step-by-step explanation:

if a +b = 9 than make its square

So,  $a^{2}$+$b^{2}$= $9^{2}$

$a^{2}$+$b^{2}$= 81

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