Question

Lie is solving the quadratic equation by completing the square.

3x2 + 18x – 8 = 0

3x2 + 18x = 8

What should Lie do next?

Write the polynomial as a binomial squared.
Factor 3 out of the variable terms.
Isolate the variable x.
Add 8 to both sides of the equation.

Answer 1

the answer is factor 3 out the variable terms

Explanation:

Answer 2

we have

`3x^(2) + 18x - 8 = 0`

Step
`1`

Move the constants to the right side

`3x^(2) + 18x = 8`

Step
`2`

Factor 3 out of the variable terms

`3(x^(2) + 6x) = 8`

Step
`3`

Add
`27` to both sides of the equation

`3(x^(2) + 6x+9) = 8+27`

`3(x^(2) + 6x+9) = 35`

Step
`4`

Write the polynomial as a binomial squared

`3(x+3)^(2) = 35`

therefore

the answer is

Factor 3 out of the variable terms.