URGENT PLEASE Solve the equation using the quadratic formula. 3x^2 - 18 = -6

x = 2 and x = -2

Step-by-step explanation:

The quadratic formula of a quadratic of the form ax² + bx + c is:

x = or x =

Here, our equation is: 3x² - 18 = -6. Let's move all the terms to one side:

3x² - 12 = 0

a = 3 and c = -12. Notice that since there's no x term, b = 0.

Plug these into the quadratic formula:

x =  

or

x =

So, x = 2 and x = -2.

x = -2, x = 2

Step-by-step explanation:

The quadratic formula:

You can find the variables a, b, and c in the standard form of a quadratic equation:

Your equation:

The variables are:

a = 3

b = 0

c = -12

Substitute those for the variables in the quadratic formula:

You can simplify this to get:

(or positive square root of 144.)

The square root of 144 is 12, and 12/6 = 2.

The x-values are -2 and 2.

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation:

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign