Secondary School (English Medium) (5 to 8) इयत्ता ८ - CBSE Question Bank Solutions

Write true (T) or false (F) for the following statement:

 If a² ends in an even number of zeros, then a³ ends in an odd number of zeros.

Which of the following number is cube of negative integer - 64 .

Which of the following number is cube of negative integer - 1056 .

Which of the following number is cube of negative integer - 2197.

Which of the following number is cube of negative integer - 2744 .

Which of the following number is cube of negative integer - 42875 .

Show that the following integer is cube of negative integer. Also, find the integer whose cube is the given integer −5832 .

Show that the following integer is cube of negative integer. Also, find the integer whose cube is the given integer −2744000 .

Find the smallest number that must be subtracted from those of the numbers in question 2 which are not perfect cubes, to make them perfect cubes. What are the corresponding cube roots?

Factorize the following:
3x − 9

Factorize the following:
5x − 15x²

Factorize the following:
20a¹²b² − 15a⁸b⁴

Find the cube root of the following natural number 343 .

Find the cube root of the following natural number 2744 .

Find the cube root of the following natural number 4913 .

Find the cube root of the following natural number 1728 .

Find the cube root of the following natural number 35937 .

Find the cube root of the following natural number 17576 .

Find the cube root of the following natural number 134217728 .

Find the cube root of the following natural number 48228544 .