y = x2-4x+4 Since the highest degree term is 2, it must have 2 roots
No real roots.
1
two complex
x2 + 4x = 0 ⇒ x(x + 4) = 0 ⇒ x = 0 or x = -4
2
4x-14
many solutions
x2-4x+4 = 0 (x-2)(x-2) = 0 x = 2 or x = 2 It has two equal roots.
The answer to the problem of 13 equals -4x plus 9 is x equals -1.
4x plus 7 plus 3x equals 19 plus xx = 2
(9,3)