Question

Please help asap
I cant figure out the answer

Answer 1

3

Explanation:

`x=√(2x+3)`

square both sides:
`x^2=2x+3`

subtract
`2x + 3` from both sides:
`x^2-2x-3=0`

factorize:
`(x-3)(x+1)`

Therefore,
`x=3 \ and \ -1`

Substitute found values of
`x` back into original equation:

`3=√(2*3+3)=3 \ \ \checkmark`

`-1=√(2*-1+3)=1` incorrect!

So answer is
`x = 3` only