22.0k views
4 votes
Solve the quadratic equation by completing the square.2x^2- 12x = 32

1 Answer

3 votes

2x² - 12x = 32

x² - 6x = 16

x² - 6x + 3² = 16 + 3²

(x - 3)² = 25

Then we have:

x - 3 = 5

x = 8

or:

x - 3 = -5

x = -2

User Vincent Traag
by
4.5k points