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__(Done by Group 1)__

**Math Workbook, Page 2.**

**Reference can be found in the math textbook on page 11.**

**Question 5 a), c), e) and g)**

**Find each of the following using prime factorisation.**

**a) square root of 2 025**

using prime factorisation, we get

3 x 3 x 3 x 3 x 5 x 5 =2025

(3x3x5) x (3x3x5) =2025

45 x 45 =2025

__Ans: 45__

**c) square root of 3 969**

3969=3x3x3x3x7x7

=(3x3x7)x(3x3x7)

=63 x 63

__Answer: 63__

**e) cube root of 5 832**

using prime factorisation, we get

2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 =5832

(2x3x3) x (2x3x3) x (2x3x3) =5832

18 x 18 x 18 =5832

__Ans: 18__

**g) cube root of 17 576**

using prime factorisation, we get

2 x 2 x 2 x 13 x 13 x 13 =17576

(2x13) x (2x13) x (2x13) =17576

26 x 26 x 26 =17576

__Ans: 26__

Clear and systematic working.

ReplyDeleteGood.

3 points for part.

Total = 12 points