PERFORMANCE TASK 1.1 B. Solve the equation 4x2 - 4x - 15 = 0 by all three methods.
Which is the easiest? the most difficult? why? Outline for Solving Quadratic Equations
1. Simplify both sides of the equation as completely as possible and put the equation into standard form.
2. Factor out any common factors and divide both sides of the equation by any common numerical factor to eliminate it.
3. If an incomplete form of a quadratic equation results and: a. if b = 0, then use the square root method. b. if c = 0, then use the factoring method.
4. If the left-hand side of the equation can be factored, use the factoring method.
5. If it looks too complicated to factor or it does not factor, then use the quadratic formula.
6. Check the equation either by substit
uting it into the original equation or by solving the equation using a different method.