Question

solve the equation
√2x+1=√x+4
a. 3
b. 1/3
c. -3
d. 1

Answer 1

@dan815 @nincompoop @Michele_Laino

Answer 2

\[\sqrt{2x+1}=\sqrt{x+4}\]

like that?

Answer 3

yes

Answer 4

so what's stopping you from just squaring both sides then?

Answer 5

Just one thing, if you square away a root in an equation, always make sure you check that any numbers that appear to be a valid answer do not make the outcome of the equation that would have been under a root negative.

Because \(\sqrt{-8}\) for example is not a real number (unless you're talking imaginary numbers)