Question

if x²= 441, then the positive value of'x'=​

Answer 1

Answer:

Answer

Correct option is

A

2

Given,

5+x

2

x

2

−9

=−

9

5

or, 9x

2

−81=−5x

2

−25

or, 14x

2

=56

or, x

2

=4

or, x=±2.

So the positive value of x is 2