Question

please solve my question ​

Answer 1

x = 105

Step-by-step explanation:

$\sqrt\frac{196}{x} \times \sqrt{ \frac{900}{x} } = 4$

$\frac{14}{ \sqrt{x} } \times \frac{30}{ \sqrt{x} } = 4$

$\frac{420}{x} = 4$

$x = \frac{420}{4} = 105$