M Max CR New member Joined Jul 2, 2008 Messages 2 Jul 2, 2008 #1 Reduce rational expression. 1-16x^2 ________ 4x^2+5x+1 How do I do this please include details For the denominator why is it (4x +1)(x+1)? Doesnt it have to be able to go into 5 using additio nor substraction?
Reduce rational expression. 1-16x^2 ________ 4x^2+5x+1 How do I do this please include details For the denominator why is it (4x +1)(x+1)? Doesnt it have to be able to go into 5 using additio nor substraction?
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Jul 2, 2008 #2 1+4 = 5 Why do you need more than that? The numerator is a "Difference of Squares". You should be able to factor that. Look for common factors in numerator and denominator and see what you can simplify.
1+4 = 5 Why do you need more than that? The numerator is a "Difference of Squares". You should be able to factor that. Look for common factors in numerator and denominator and see what you can simplify.
D Denis Senior Member Joined Feb 17, 2004 Messages 1,700 Jul 2, 2008 #3 Max CR said: 1-16x^2 ________ 4x^2+5x+1 For the denominator why is it (4x +1)(x+1)? [?quote] You don't know why? Hmmm....go learn: http://www.purplemath.com/modules/solvquad.htm Click to expand...
Max CR said: 1-16x^2 ________ 4x^2+5x+1 For the denominator why is it (4x +1)(x+1)? [?quote] You don't know why? Hmmm....go learn: http://www.purplemath.com/modules/solvquad.htm Click to expand...
