-30x4 - 50x2
-10x2(3x2+5)
State slope and y-intercept for x - 3y = 18
slope = 1/3
y-intercept = -6
Solve for all values of y:
72 = |9y|
y = -8 or 8
Solve for all values of x:
x2 + 10x + 21 = 0
x = -3 or -7
Express the inequality using interval notation:
x < -9 or x > 5
(-inf, -9) U (5, inf)
121 - 9x2
(11 - 3x)(11 + 3x)
Solve for x and y:
3x - 8y = 19
3x + 5y = -46
x = -7
y = -5
Solve for all values of b:
|b+17| = 49
b = 32 or -66
Solve for all real solutions:
-x2 - 18x + 15 = -6x2
x = (9 + sqrt(6))/5 or (9 - sqrt(6))/5
Given f(x) = 2x2 - x, what is f(x - 2) as a simplified polynomial?
4x3 + 7x2 + 36x + 63
(x2 + 9)(4x + 7)
Solve for x and y:
y = 6x + 2
5x - 6y = 19
x = -1
y = -4
Solve for all values of y:
59 = |9 - 5y|
y = -10 or 68/5
The length of a rectangle is 5 units more than the width. The area is 36. What is the length of the rectangle?
9
Find the coordinates of the vertex of the following parabola:
y = 4x2 + 56x + 188
(-7, -8)
x2 - 2x - 63
(x - 9)(x + 7)
S + L = 13
50S + 350L = 3350
Solve for all values of x:
4|10 - 3x| + 3 = 51
What are the roots of the equation 9x2 + 28 = 30x?
x = 5/3 + i sqrt(3)/3 or 5/3 - i sqrt(3)/3
Simplify the expression to a + bi form:
(24 + 2i)/(-3 + 7i)
-1 - 3i
6x2 - 23x + 7
(3x - 1)(2x - 7)
Each banana costs $1.75 and each pineapple costs $5.
Solve for all values of x:
|2x+9| + 9 = 4x
x = 9
(x = 0 is extraneous)
Nasim has 38m of fencing to build a three-sided fence around a rectangular plot of land that sits on a riverbank. (The fourth side of the enclosure would be the river.) The area of the land is 176 square meters. List each set of possible dimensions (length and width) of the field.
11m by 16m
OR
8m by 22m
Write the quadratic function in vertex form and state the vertex:
y = -3x2 + 12x - 17
y = -3(x - 2)2 - 5
Vertex: (2, -5)