1) Solve by factoring:
2) Find the exact solution to:
3) Solve this equation:
1)
Cross Multiply to get:
Multiply both sides by :
Now multiply out:
Move everything to one side, then simplify:
Now use the quadratic equation to find the roots.
2)
Multiply both sides by :
(2k - 2)(k + 1) = 4 - 5k
Multiply out:
Bring everything to one side, then simplify:
Now use the quadratic equation.
3)