subtracting rational expressions...please help!

Question

__9x+1__  _  __6x-2__

  X+1.             X+1

Answer 1

Hi Carlos,

 

the denominator is same so we can just go ahead and add /subtract the numerator

 

= [9x+1 - (6x-2)] / (x+1) 

= 3x+3 / (x+1)

=3(x+1) / (x+1)

=3