Question

Complete the square to slove 3x^2+12x=9

Answer 1

Exact form :

x = ± √ 7 − 2

Decimal form :

x = 0.6457 , -4.6457

Explanation:

3x^2+12x=9

We will use formula " (b/2)^2 to create new term,

We will solve for x to complete the square

Exact form :

x = ± √ 7 − 2

Decimal form :

x = 0.6457 , -4.6457