Question

What is the solution set of 4x 2 - 36 = 0?

Answer 1

Answer:

The solution set of equation $4x^2-36=0$ is 3 and -3.

Step-by-step explanation:

Given: Equation $4x^2-36=0$

We have to find the solution set of equation $4x^2-36=0$

Consider the given equation  $4x^2-36=0$

Adding 36 both side, we get,

$4x^2-36+36=36$

Simplify, we get,

$4x^2=36$

Divide both side by 4, we get,

$x^2=9$

Taking square root both side, we have,

$x=\sqrt{9}$

Simplify, we get,

$x=\pm 3$

Thus, The solution set of equation $4x^2-36=0$ is 3 and -3.

Answer 2

4x2-36=0
+36 +36
4x2=36
Divide by 4
X2=9
Square root of x2 is x and the square root of 9 is 3
X=3