SOLUTION: Solve the equation and show the check of the potential answer(s). If any answers are excluded values, state this on your answer sheet. Please show work. (5)/(x^2+3x-4)+1=(x^2+7x

Algebra ->  Radicals -> SOLUTION: Solve the equation and show the check of the potential answer(s). If any answers are excluded values, state this on your answer sheet. Please show work. (5)/(x^2+3x-4)+1=(x^2+7x      Log On


   



Question 1009865: Solve the equation and show the check of the potential answer(s). If any answers are excluded values, state this on your answer sheet. Please show work.
(5)/(x^2+3x-4)+1=(x^2+7x+10)/(x^2+3x-4)

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2B3x-3=%28x%5E2%2B7x%2B10%29%2F%28x%5E2%2B3x-4%29
%28x%5E2%2B3x-3%29%28x%5E2%2B3x-4%29=x%5E2%2B7x%2B10
Distributive property and simplification on the left member
and then arrange for all terms to be on one side
highlight_green%28x%5E4%2B6x%5E3%2Bx%5E2-28x%2B2=0%29


Rational Roots Theorem and synthetic division, to check for roots, based on the
possibilities of -1, -2, 1, 2. You expect possible four roots.

The roots were checked, done on paper, not shown here, and none of those worked as roots. Best to try a graphing tool, software. When done as so, two real roots; one about 0.0718, and another about 1.794. These would be decimal approximations of irrational roots.