Question

Please answer with step by step explaination​

Answer 1

Answer:

using hit and try method

x = 4

so

√(4x-9) + √(4x+9) = 5 + √7 at x = 4

=> √{4*4-9} + √(4*4+9)

=> √(16-9) + √(16+9)

=> √ 7 + √ 25

=> 5 + √7 = RHS

so x= 4