Question

solve this guyz................

Answer 1

b) 300 is the answer .[when you multiplied 90×300 you will get 27000 which is perfect cube and 27000 cube root is 30]

Answer 2

we need to know how 90 factors into primes
90=2⋅3^2⋅5
To obtain a square, we need to add powers so all exponents are multiples of 2.You multiply by 10=2.5 to obtain
900=30^2
Now, To obtain a cube, we similarly add powers to get multiples of 3. You multiply by 300=2^2.3.5^2 to get 27000=30^3.

hope it helped.....☺️