You Better Get these Right!
Simplify this expression: 3x2 + 2x - x
3x2 + x
2 + 3 + 7
12
-2 - 3
-5
When a number is attached to a variable like this: 3x what operation does that mean?
multiplication
32 - 1
8
Solve this equation: 2x - 5 = 7
x = 6
8 x 7
56
-52
-25
How do we get "x" by itself in this situation:
2x = 4
divide 2 on both sides
-102
-100
What is the inverse of square rooting?
squaring
32 + 42
25
(-4)2
16
What operation does the fraction bar represent? Example: 10/2
division
Put in exponential form.
42 x 45
47
When solving equations we need to get the _______ by itself.
variable
11
7 - 8 + 9
8
What does squaring a number mean?
multiplying by itself TWICE
put in exponential form
1112 (divided by) 117
115
Simplify this expression: 3(2x + 2x) - 4x
8x
(2 + 2) + 22 x 2
16
-2 x 20
-40
In y=mx+b, m represents the ______ and b represents the _______.
m = slope
b = y intercept
If A is less than 0, and B is less than zero, and you multiplied A and B together, your answer would be ________ than zero.
greater