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 click option :
Solve by Completing the Square
Then in rectangle type:
x^2-4x-32=0
and click option: solve it
You will see solution step-by step
x^2-4x-32=0
solve by factoring
2 answers
answer: (x-8) (x+4) because -8+4=-4 and -8x4=-32
1 answer