\sqrt{7X-14}+\sqrt{7X+1}=15 Find the value of x.

Madhya Pradesh Police Exam Model Paper 7

Question : 57 of 100

Marks: +1, -0

√{7X-14}+√{7X+1}=15

Find the value of x.

Solution:

Tips & Tricks
Concept:
Comparing LHS and RHS
Calculation:

√{7X-14}+√{7X+1}=√49+√64

By comparing,

⇒ 7x - 14 = 49

⇒ 7x = 49 + 14

⇒ 7x = 63

⇒ x = 63{/}7

⇒ x = 9

Hence, required value of x is 9.

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