SOLUTION: Hello, i need help factoring trinomials where a>1 problem is: 4n^2 - 15n - 25 I dont understand how if the factors of -25 are meant to = - 15 how to do this Thank you

Algebra.Com
Question 602706: Hello, i need help factoring trinomials where a>1 problem is:
4n^2 - 15n - 25
I dont understand how if the factors of -25 are meant to = - 15 how to do this
Thank you

Answer by Rcmathtutor(12)   (Show Source): You can put this solution on YOUR website!


The factors of -25 are not mean to be = -15 because -15n results from (4n)(-5) + (5)(n).

RELATED QUESTIONS

solve the quadratic equations by factoring: a) 4x^2=4x-1 b)... (answered by greenestamps)
i need help factoring... (answered by Prithwis)
Hello, i need help with a math problem. i dont understand exponents. here is my question: (answered by Alan3354)
if it takes 5hrs.to clean 2/3 of a large boat how long will it take to clean whole boat?I (answered by ptaylor)
I need help factoring this problem completely: 16a^2 +... (answered by Edwin McCravy)
I have a problem where I am supposed to write each rational expression in lowest terms... (answered by Earlsdon)
I need help on how do I work this problem out m^2-10m+25 a line underneath the problem... (answered by ankor@dixie-net.com)
I dont understand what I am doing wrong, as I am off by a number or a value, or my... (answered by Alan3354)
Hello, I'm having trouble solving the second part of this equation. Its a factoring... (answered by colliefan)