Question

Factorise: x³ - 23x² + 142x - 120 OR Represent √9.3 on number line.​

Answer 1

Steps:

1) Draw a line segment AB of length 9.3 units.

2) Extend the line by 1 unit more such that BC=1 unit .

3) Find the midpoint of AC.

4) Draw a line BD perpendicular to AB and let it intersect the semicircle at point D.

5) Draw an arc DE such that BE=BD.

Therefore, BE=

9.3

units

solution

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Answer 2

ANSWER

Representing √9.3 on the number line.