How do you solve 2x^2 + 3x - 14 = 0?

1 Answer
Jun 30, 2017

2, and - 7/2

Explanation:

2x^2 + 3x - 14 = 0
Use new Transforming Method.
Transformed equation:
y' = x^2 + 3x - 28 = 0
Proceeding: find 2 real roots of y', then, divide them by a = 2.
Find 2 real roots, knowing sum (-b = -3) and product (ac = - 28). They are: 4 and -7 (because sum = -3 and product = - 28).
Back to original y, the 2 real roots are:
x1 = 4/a = 4/2 = 2, and x2 = - 7/a = - 7/2 = - 7/2