Question

If one wanted to solve the equation below using the quadratic formula, what would be the b value used to substitute into the quadratic equation.

3x 2 − 2 = - 5x

Answer 1

b = 5

Explanation:

All quadratic equations are formed in the format of
`a^(2)` + bx + c = 0

Using this formula, we can re-arrange the equation to fit the given format.


`3x^(2)` - 2 = -5x

`3x^(2)` + 5x - 2 = 0

5 is plugged in for "b" in this equation, therefore b = 5.