which of the following numbers are not perfect cubes? 128

which of the following numbers are not perfect cubes? 1000

which of the following numbers are not perfect cubes? 100

which of the following numbers are not perfect cubes? 216

which of the following numbers are not perfect cubes? 46656

Find the least number which must be subtracted from each of the following numbers so as to get a perfect square.Also,find the square root of the perfect square so obtained: 402

Find the least number which must be subtracted from each of the following numbers so as to get a perfect square.Also,find the square root of the perfect square so obtained: 1989

Find the least number which must be subtracted from each of the following numbers so as to get a perfect square.Also,find the square root of the perfect square so obtained: 3250

Find the least number which must be subtracted from each of the following numbers so as to get a perfect square.Also,find the square root of the perfect square so obtained: 825

Find the least number which must be subtracted from each of the following numbers so as to get a perfect square.Also,find the square root of the perfect square so obtained:4000

Find the least number which must be added to each of the following numbers so as to get a perfect square.Also,find the square root of the perfect square so obtained: 525