SOLUTION: What values for x must be excluded in the following fraction? x-3/(4x-5)(x+1) Thank you.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: What values for x must be excluded in the following fraction? x-3/(4x-5)(x+1) Thank you.      Log On


   

Question 29906: What values for x must be excluded in the following fraction?
x-3/(4x-5)(x+1)
Thank you.
Answer by Cintchr(481) About Me  (Show Source):
You can put this solution on YOUR website!
+%28x-3%29%2F%28%284x-5%29%28x%2B1%29%29+
since no number in the denom can be zero, set each part of it equal to zero.
+4x-5+=0+ and +x%2B1+=+0+
+4x+=+5+ and +x+=+-1+
+x+=+5%2F4+ and +x+=+-1+
These are the values which are excluded, or that make the fraction 'Undefined'