SOLUTION: {{{4x^4+25}}} is this equation factorable? if so how do you factor it? i know how to factor it if it was a -25 but i dont see how since its possitive. thanks for your help

Algebra ->  Expressions-with-variables -> SOLUTION: {{{4x^4+25}}} is this equation factorable? if so how do you factor it? i know how to factor it if it was a -25 but i dont see how since its possitive. thanks for your help      Log On


   



Question 682070: 4x%5E4%2B25 is this equation factorable? if so how do you factor it? i know how to factor it if it was a -25 but i dont see how since its possitive.
thanks for your help

Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
4x%5E4%2B25 is this equation factorable?
sometimes, if it is set up right
(2x^2+5)^2
=(4x^4+20x^2+25)-20x^2
=(2x^2+5)^2-20x^2
difference of two squares
(2x^2+5)+x√20)(2x^2+5)-x√20)