quadratics:

Question 1

quadratic function: solutions to ax² + bx + c = 0

Answer 1

x = -b +-√b²-4ac/2a, a ≠ 0

Question 2

completing the square: ax² + bx + c = 0

Answer 2

a ( x +- b/2a)² + c - b²/4a

Question 3

max/min value:

Answer 3

c - b²/4a