Question

Which equation can be rewritten as x + 4 = x^2? Assume x > 0

Answer 1

Answer:

$\sqrt{x+4} =x$

Step-by-step explanation:

$x+4=x^2$

Rewrite the given equation

To rewrite the given equation ,we need to remove the square from x on the right hand side.

To remove square we take square root onboth sides

$x+4=x^2$

Take square root on both sides

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

Square and square root gets cancelled

$\sqrt{x+4} =x$

Answer 2

The answer is c, since this is the square root of both sides.