anonymous
  • anonymous
solve (x-3)/(x+1) >0
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
do i multiply everything by x+1?
ankit042
  • ankit042
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anonymous
  • anonymous
what?

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DebbieG
  • DebbieG
It's a rational expression. The sign is determined by the signs of each factor, e.g., for any particular x, you know whether the num'r is >0 or <0, and whether the den'r is >0 or <0. If they have the same sign, then the expression is >0 (whether they are both positive or both negative). If they have opposite signs, then the expression is <0. So think about the points where each (num'r and den'r) will CHANGE sign. That divides the domain into 3 regions. Find the sign of expression in each region of the domain, and you'll know the solution set to the inequality.
anonymous
  • anonymous
both numerator and denominator are of the same sign
anonymous
  • anonymous
solve taking both the cases.
anonymous
  • anonymous
case1 when both are positive. i.e.,x-3>0,x+1>0,x>3,x>-1 ,combining x>3 Similarly solve when both are negative.

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