Question

solve 40 no quickly!!
ans in a page!!
^_^

Answer 1

Image quality is not as better as you would expect, but I Don't have good camera phone, So try to understand the answer.Thank u

Hope it helps!!

Answer 2

here is your answer
x= (-3)

for better understanding:

6561 = 81² = (9²)² = ((3²)²)²
= 3²*²*² = 3^8