Gabby solve {x^2} - x - 20 = 0 as shown below:
\begin{array}{l}{x^2} - x - 20 = 0\\\left( {x - 5} \right)\left( {x + 4} \right) = 0\\x = - 5,4\end{array}
Caitlyn says Gabby is wrong and believe this is the solution:
\begin{array}{l}{x^2} - x - 20 = 0\\\left( {x - 5} \right)\left( {x + 4} \right) = 0\\x = 5, - 4\end{array}
Is Gabby or Caitlyn correct? Explain the error made by the incorrect girl.

Hey! We 've verified this expert answer for you, click below to unlock the details :)

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

by correct you mean the way it was typed ?

I mean that the point I made (as regards to the math part)

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

Looking for something else?

Not the answer you are looking for? Search for more explanations.