Question

Solve the equation with the quadratic formula.

r^2 + 9r - 22 = 0

Answer 1

1) Put the quadratic equation into standard form.
2) Write out the formula and what a, b, & c stand for.
3) Substitute for each variable.
4) Split into two separate equations (setting each equal to zero) and solve.
5) Check each root in the original equation.

Answer 2

r^2 +9r -22 = 0
(r + 22)(r -?)=0
(r+22)=(r-?)

So something along these lines.

Answer 3

r=2,−11