53 I think is the answer.
The expression given is

The sum of the expression will be,

The sum will be
This equation is not true.
A) -3√288=-3√(144*2)=-3√144<span>√2=-3*12</span><span>√2=-36</span><span>√2
b) </span>5√320=5<span>√(64*5)=</span>5<span>√64</span><span>√5=5*8</span><span>√5=40</span><span>√5</span>
The answer is (-2,-3) Thank you and please rate if I helped you! Thanks again!