What does FOIL stand for?
First
Outside
Inside
Last
solve for x
sqrt(x) = 81
x = 9
What does PEMDAS stand for?
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Domain contains all possible...
x - values
True/False: rules for coefficients and exponents are always the same when performing an operation.
False
Multiply the binmials to create a trinomial.
(x + 7)(x - 8)
x2 - x - 56
What are the 4 steps of solving a radical equation?
Isolate
Raise
Solve
Check
56 = −48 − 8y
y = -13
Range is read in what direction on a graph? (order matters)
Down to up.
Simplify: 4x8y9/2x4y5
2x4y4
Multiply the binomials to create a trinomials
(4x + 9)(x +2)
8x2 + 23x + 18
solve for x
sqrt(6x - 32) + 17 = 21
x = 8
9 = (−1/3)z − 7
z = -48
The point is not included.
Simplify: 5x4y6z4(6y2z3)
30x4y12z7
Factor the following Quadratic:
x2 - 3x - 28
(x - 7)(x + 4)
solve for x
sqrt(3x + 108) − 14 = -5
x = -9
7x − 3 = 9x − 21
x = 9
Draw a graph with a range of [-2, 8] and a domain of [-5, 10].
Answers will vary
Simplify: (3x9)3
27x27
Factor the following quadratic
3x2 + 2x - 8
Hint: use tic tac toe (will not be on the test)
(3x - 4)(x + 2)
solve for x
sqrt(x2 - x + 5) = sqrt(x2 + 4)
x = 1
−11x − 4 = −6x + 31
x = -7
Draw a graph with a domain of (-6, 5] and a range of [-3, 6].
Answers will vary
Simplify: 3x4y5(2x2y)3
24x10y8