Imaginary Square Roots/Multiplying Complex Numbers
What is the square root of -9?
3i
Convert x2 − 8x + 16 = 1 to vertex form by completing the square.
(x - 4)2 + 1= 0
What is the quadratic formula (group must sing the song)?
:)
Solve:
(-6 + 2i) + (8 + 3i)
2 + 5i
v2 +2v-8=0
{2,-4}
What is the square root of -12?
2i sqrt 3
Convert x2 - 20x +19= 0 to vertex form by completing the square.
(x - 10)2 - 81 = 0
Solve 6x2 + 12x = 90 using the quadratic formula.
x= -5 and 3
Solve:
(2 - 4i) + (6 - 3i)
8 - 7i
2n2-n-4=2
{3/2 ,1}
What is the square root of - 128?
8i sqrt 2
Convert x2 + 4x +14 = 0 to vertex form by completing the square.
(x + 2)2 + 10 =0
Solve x2 - 8x + 14 = 0 using the quadratic formula.
= 8 ±√ 8 / 2
Solve:
(-4 + 2i) - (3 - 6i)
-7 + 8i
x2+2x-24=0
{4,-6}
Solve: (3 + 2i)(2 - 3i)
12 - 5i
Convert x2 − 6x − 3 = 0 to vertex form by completing the square.
(x−3)2 - 12 = 0
Solve x2 + 4x - 21 = 0 by using quadratic formula.
x = 3 or -7
Solve:
(-4 - 5i) - (-2 - i)
-2 - 4i
x2-11x+19=-5
{3,8}
Solve:
(-6 - 3i)(-2 - i)
9 + 12i
Solve x2 - 6x + 7 = 0
(x-3)2 - 2 = 0
Solve 2x2 = 7x + 6 by using quadratic formula.
x = (7 ±√ 97) / 4
Solve:
2 (4 - i) + (3 + 2i)
11
6n2-18n-18=6
{4,-1}