quadratic equations

Question 1

completing the square

Answer 1

ax2 + bx + c = a(x + b/2)2 - b/2^2 + c

Question 2

quadratic formula

Answer 2

x = -b +/- √b2 - 4ac/ 2a

Question 3

b2 - 4ac = 0

Answer 3

real and repeated root

Question 4

b2 - 4ac > 0

Answer 4

two real and distinct roots

Question 5

b2 - 4ac < 0

Answer 5

no real and distinct roots