Q19 of 45 Page 7

Find the cube of the following rational numbers:
(i) 1.4

(i) (1.4)3 = 1.4 × 1.4 × 1.4 = 2.744.

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17 Find the cube root of each of the following numbers:
1. 8 흤
2. (-216) × 1728
3. 27 × (-2744)
4. (-125)×(-3375)
5. -456533
6. -5832000 18 Find the cubes of the following by multiplication.
(i) -4
(ii) 23
(iii) 3030 20  

    By what number would you multiply 231525 to make it a perfect cube?     1

    Evaluate: (55)3