Question

What is the solution of Sqrt ( 2x + 4) = 16?

Answer 1

Answer: The value of x is 126.

Step-by-step explanation:

Since we have given that

$\sqrt{2x+4}=16$

We need to find the solution of 'x'.

So, on squaring both sides, we get that,

$(\sqrt{2x+4})^2=16^2\\\\2x+4=256\ (\because (\sqrt{a})^2=a)\\\\2x=256-4\\\\2x=252\\\\x=\frac{252}{2}\\\\x=126$

Hence, the value of x is 126.

Answer 2

Answer:

The solution of the equation is x=126.  

Step-by-step explanation:

Given : Equation $\sqrt{2x+4}=16$

To find : The solution of the equation ?

Solution :

Equation $\sqrt{2x+4}=16$

Squaring both side,

$(\sqrt{2x+4})^2=(16)^2$

$2x+4=256$

Subtract 4 both side,

$2x+4-4=256-4$

$2x=252$

Divide both side by 2,

$x=\frac{252}{2}$

$x=126$

Therefore, the solution of the equation is x=126.