# Math 4 (Count Ibilis)

posted by .

Solve by factoring:
One of the solutions to the quadratic equation 2x^2 - 9x – 5 is -1/2.
What is the other solution?

2x^2 - 9x – 5 = (2x + 1)(x - 5)

So, it's x = 5.

## Similar Questions

1. ### Math 3

Solve by factoring: One of the solutions to the quadratic equation x^2 - 13x + 30 is 3. What is the other solution?
2. ### Factoring

What does 3x^3-3x+2=0 come out to? How would I solve this?
3. ### Math

-x^3 + 1.85x^2 - x +0.15 = 0 how can you solve for x?
4. ### algebra II

How do you know if a quadratic equation will have one, two, or no solutions?
5. ### algebra II

How do you know if a quadratic equation will have one, two, or no solutions?
6. ### Algebra II

1)What method(s) would you choose to solve the equation: x2 + 2x - 6 = 0 A. Square roots; there is no x-term. B. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. C. Factoring; the equation …
7. ### AlgebraB-2

A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = 0.04x+ 8.3x + 4.3, where x is the horizontal distance, in meters, from the starting point on the roof and y is the …
8. ### Math

Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma …
9. ### Math

Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma …