Question 3 pick out the solution from the values given in the bracket next to each equation. Show that the other values do not satisfy the equation. (e) r – 4 = 0 (4, – 4, 8, 0)r −4 = 0 Putting r = 4 4 – 4 = 0 0 = 0 It is true So, r = 4 is a solution Putting r = −4 –4 – 4 = 0 8 = 0 It is not true So, it is not a solution Putting r = 8 8 – 4 = 0 4 = 0 It is not true So, it is not a solution Putting r = 0 0 – 4 = 0 −4 = 0 It is not true So, it is not a solution

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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