Solve: 2 (Radical x) + 8 = -2

Question

allank · Answer

I assume the (Radical x) is $$\sqrt{x}$$
?

anonymous · Answer

$$2 \sqrt{x} = -10$$

Squaring both the sides,

$$4x = 100$$

Divide by 4 both the sides and tell me what you got..

anonymous · Answer

don't you have to divide by 2 first before you square both sides?

anonymous · Answer

You can do that also..

Answer will remain the same..

According to you:

Divide by 2 both the sides:

$$\large \sqrt{x} = -5$$

Squaring both the sides:

$$\large \color{green}{x = 25}$$

anonymous · Answer

That was what my answer was, and I got it wrong on my test ):

anonymous · Answer

And According to me:

$$\large 4x = 100$$

Divide by 4 both the sides:

$$\large x = \frac{\cancel{100}^{25}}{\cancel{4}} = 25$$

anonymous · Answer

okay thank you so much for the help!

anonymous · Answer

Welcome dear..