Question

Part One:

Solve the equation by completing the square.

x² - 3x - 15 = -5

x² - 17x = -10x - 6

Find the discriminant of each quadratic equation.

-10x² - 6x + 5 = 0

2x² + 6x + 1 = 0

Part Two:

Use the quadratic formula to solve each equation.

2x² - 5x + 4 = 0

12x² - 5x - 7 = 0