Practice problem
Solve for x.
13x2+26x−36=1313x^2+26x-36=1313x2+26x−36=13
5+1\sqrt5+15+1
5−1\sqrt5-15−1
−5+1-\sqrt5+1−5+1
−5−1-\sqrt5-1−5−1
Type a concept, like “slope” or “photosynthesis”.