Explain, in complete sentences, how you would completely factor 20x2 – 28x – 48 and check your factors for accuracy. I need help with factoring the -12 and factoring the sum

Question

anonymous · Answer

i know a website that will help!

anonymous · Answer

OK. What is it?

anonymous · Answer

http://www.mathportal.org/calculators/polynomials-solvers/polynomial-factoring-calculator.php

uri · Answer

20x2 – 28x – 48 
Factor it with 4
4(5x^2-7x-12)

anonymous · Answer

okay I got that. after I do that what happens.

anonymous · Answer

( x + 1 )( 5x - 12 )

anonymous · Answer

@OpenSessame Is that the answer?

anonymous · Answer

Yup

anonymous · Answer

@uri Do you agree with that answer?

uri · Answer

@OpenSessame How did you get that..? What did you factor it with?

anonymous · Answer

And i forgot the 4 outside lol

anonymous · Answer

4( x + 1 )( 5x - 12 )

anonymous · Answer

4 (5x^2 - 7x - 12)

uri · Answer

Hold on..

anonymous · Answer

Just factor whats inside the parenthesis

skullpatrol · Answer

Just?

uri · Answer

Did you use Quadratic formula? @OpenSessame

anonymous · Answer

I dont think his answer is right.

anonymous · Answer

You don't need the quadratic formula for this.