1. Solve (x+19)(x-11)(x+18)>0
2. Solve the equation 2x^2-x=-7
1.
All parts must be great of 0
less numbe is 11
solution x > 11
2.
In google type:
quadratic equation online
When you see list of results click on:
Free Online Quadratic Equation Solver:Solve by Quadratic Formula
When page be open in rectangle type:
2x^2-x=-7
and click option: solve it!
You wil see solution step-by-step