Question

CAN ANYBODY DO BOTH THE PARTS​

Answer 1

Answer:

here your answer

Step-by-step explanation:

using identity (a-b)^2=a^2+b^2-2ab

a) (4√3)^2+(3√5)^2-2*4√3*3√5

16*3+9*5-24√15

48+45-24√15

93-24√15

b) √25*2-√49*2-√81*2

5√2-7√2-9√2

-11√2