Here is what I have done so far:

$2(20x^2-19x+3)$ //factored the GCF

$60x² $//Multiplied $3$ into $20x²$

$-15x -4x$ //These two numbers add into $-19x$, and multiply into $60x²$

$2((20x^2-15x)(-4x+3))$ //Put it into form again.

$2(-5x(-4x+3)1(-4x+3))$ //Factored the GCF out of each grouping.

$2(-5x+1)(-4x+3)$ //Reformatted to try and get the final answer.

I am stuck on this step.

Any help would be greatly appreciated. I am a high school math student, so I am obviously not an expert in this stuff. I just want to understand what I did wrong or what the computer wants and learn from it.

  • $\begingroup$ Which program/software are we talking about? $\endgroup$
    – mjw
    Oct 28 '20 at 15:21
  • $\begingroup$ Your answer is correct. It's a problem with the program. Try multiplying each of the last two factors by $-1$ and see if it will accept that. $\endgroup$
    – saulspatz
    Oct 28 '20 at 15:22

Your calculation seems fine, you could try to insert as answer the equivalent


by a simple change in sign for the two factors.

  • $\begingroup$ Thank you. This and Saulspatz's recommendation worked. I can't accept an answer until 9 minutes from now though. $\endgroup$
    – Matt
    Oct 28 '20 at 15:25
  • $\begingroup$ You are welcome! Bye $\endgroup$
    – user
    Oct 28 '20 at 15:30

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