Complex Numbers
The imaginary unit, i, is equal to the square root of this number.
What is -1?
Solve the following quadratic equation by completing the square: x2 + 6x = -8
{-4, -2}
Express in simplest radical form:
sqrt(12
2sqrt(3)
What is the quadratic formula?
x =( -b pm sqrt(b^2 - 4ac)) /(2a)
A group of wolves is called a ....
Pack
Complex roots always come in pairs called conjugates. This is the conjugate of 3-4i .
What is 3+4i ?
Solve the following quadratic equation by completing the square: x2 - 6x = -5
{1, 5}
Express in simplest radical form: sqrt(-36)
6i
Solve the following quadratic equation by using the quadratic formula: x2 + 6x + 5 = 0
x = -1, x = -5
A group of oxen is called this
a team or yoke
This is the exact value of i^527 .
What is -i ?
Solve the following quadratic equation by completing the square: x2 - 2x = 24
{-4, 6}
Express in simplest radical form: sqrt(24x^7)
2x^3sqrt(6x)
Solve the following quadratic equation by using the quadratic formula. x2 - 9x + 6 = 0
(9 pm sqrt(57))/2
A group of snakes is called a....
Nest
Find the product of 4+7i and its conjugate.
What is 65?
Solve the following quadratic equation by completing the square: x2 + 10x +5 = 0
-5 +- 2(sqrt5)
Express in simplest radical form: sqrt(-196x^4y^5)
14ix^2y^2sqrt(y)
Solve the following quadratic equation by using the quadratic formula: 2x2 + 9x + 4 = 0
{-1/2, -4}
A group of eagles is called this
a convocation
One of the roots of f(x) is x=(3+sqrt11)/4 . Find the other root.
What is x=(3-sqrt11)/4 ?
Solve the following quadratic equation by completing the square:
x2 - 8x + 13 = 0
4 +-sqrt 3
Express in simplest radical form: sqrt(-245xy^5z^2)
7iy^2zsqrt(5xy)
Solve the following quadratic equation by using the quadratic formula (nearest tenth):
4x2 - 17x =-12
x = (17 pm sqrt(97))/8
A group of ferrets is called this...
A business