Solve the following quadratic by completing the square.
f(x) = x2 + 2x – 12
x = [?] =)
Steps to Remember
1. Set the y-value equal to 0.
2. Subtract the constant term from both sides.
3. Add ()2 to both sides (to complete the square).
4. Factor (write as a perfect square).
5. Solve for x like normal.

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius