How do you factor 20x^2 - 41x + 20?

1 Answer
May 13, 2016

(4x - 5)(5x - 4) " "16+25 = 41

Explanation:

color(red)(20)x^2 color(brown)(-) color(blue)(41)x color(teal)(+) color(orange)(20)

You are looking for the factors of color(red)(20 ) and color(orange)(20) " which" color(teal)(" add") " together to give " color(blue)(41).

"The signs in the brackets are" color(teal)( " the same"), "they are both" color(brown)(" negative").

(4x - 5)(5x - 4)