For class 10,ex - 10.2, qn no-12

• You multiplied √48x(14+x)
• Instead we can keep it exactly like that and when it comes down the equation would be like this
• √48x(14+x)=56+4x
• We can take 4 as common from RHS 
• So 14+x cancels out!

Like sir did,  the calculation seemed to be great deal of loss of time. 

I think this would be a bit more easy. 

Tnku