Complex Numbers Flashcards
1
Q
real roots
A
the formula > or equal to 0
2
Q
the quadratic equation has one repeated real root
A
the formula = 0
3
Q
not real
A
the formula < 0
4
Q
equal and rational
A
the formula = 0
5
Q
imaginary roots
A
the formula < 0
6
Q
perfect square
A
real, rational, unequal
7
Q
non perfect square
A
real, irrational, unequal
8
Q
zero
A
real, rational, equal
8
Q
negative
A
imaginary
9
Q
formulas to remember
A
r1+r2 = -b/a; r1(r2) = c/a
10
Q
x2 - (sum of roots)x + (product of roots) = 0
A
