Final answer to the problem
$r=3,\:r=-4$
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Step-by-step Solution
How should I solve this problem?
- Choose an option
- Solve for r
- Find the derivative using the definition
- Solve by quadratic formula (general formula)
- Simplify
- Find the integral
- Find the derivative
- Factor
- Factor by completing the square
- Find the roots
- Load more...
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1
Sort the polynomial $12-r-r^2$ in descending order to handle it more easily
$-r^2-r+12=0$
Learn how to solve problems step by step online. Solve the quadratic equation 12-r-r^2=0. Sort the polynomial 12-r-r^2 in descending order to handle it more easily. Factor the trinomial by -1 for an easier handling. Factor the trinomial -\left(r^2+r-12\right) finding two numbers that multiply to form -12 and added form 1. Rewrite the polynomial as the product of two binomials consisting of the sum of the variable and the found values.
Final answer to the problem
$r=3,\:r=-4$
