Unit 5
More Unit 5
Unit 6
More Unit 6
100
Factor 8x2y3 - 24x3
8x2(y3 - 3x)
100
Solve by factoring:
6x^2+x-2=0
x=1/2 and x=-2/3
100
Multiply
(4-7i)(5+2i)
34 - 27i
100
Use the completing the square to solve the following:
x^2+12x=20
x=-6+-2sqrt(14)
200
What are the x-intercepts for the following quadratic: f(x)=(x-9)(2x+1)
x=9 and x=-1/2 or -.5
200
Solve by factoring
x2 - 10x = -16
x=8 and x=2
200
Simplify
5sqrt(-16)+6sqrt(-4)
32i
200
Solve using the square root method:
3(x-5)^2+36=9
x = 5 +- 3i
300
Factor 3x2 - 243
3(x-9)(x+9)
300
Solve by factoring
28x3 + 16x2 - 80x = 0
x = 0, x = 10/7, and x=-2
300
Which method would be the best to solve the following quadratic equation?
-2(x-7)2 = -72
Square Root Method
300
How many solutions does for the following quadratic have and what is the discriminant?
3x^2-4x+5=0
0 real solutions and the discriminant is -44.
400
Factor 6x2 + 7x - 24
(2x-3)(3x+8)
400
Solve (x-7)(x+1) = 33
x = -4 and x = 10
400
Which method would be the best to solve the following quadratic equation?
x2 + 5x = -9
Quadratic Formula (Can't factor or square root. Also, b is odd therefore completing the square is not good)
400
Solve
81x^2+49=0
x=-7/9i and x=7/9i
500
Find the zeros for the following function:
f(x) = -2(x-4) - x(x-4)
Zeros are x=4 and x=-2
500
Solve using the quadratic formula
3x2 - 8x = 9
x=(4+-sqrt(43))/3