Question

The number 87120 is not a perfect square. Find the smallest number
(i) by which it should be multiplied to make it a perfect square.
(ii) which should be subtracted from it to make it a perfect square.
In both (i) and (ii), find the square root of the perfect square so obtained.

Answer 1

87120=2×2×2×2×3×3×5
√87120=2×2×3×√5
to get perfect square we have to multiply it with 5
87120×5=435600