Question

The positive value of x, which satisfies the equality x^2 + 2 = 11 is ...​

Answer 1

Answer:

Given,

x^2+2=11

let's send +2 to other hand it becomes -2

x^2=11-2

x^2=9

x^2=3^2

power "2" will be cancelled on both sides

therefore : [x=3]