AlgebraLab

Quadratic Formula

By M Dionne

Determine the x-intercepts for each of the following equations by using the quadratic formula.

7x2 + 3x - 4 = 0

3x2 - 7x + 89 = 0

54x2 - 73x - 13 = 0

4x2 + 6x + 2 = 0

81x2 + 27x + 9 = 0