Parts of an Expression
How many terms are in the expression:
3x - 5 + 7x - 5
4 terms
Terms are separated by addition and subtraction.
Simplify
7m-10+5m+4
12m - 6
5(3x-10)
15x - 50
3/5 + 2/3 - 3/4
31/60
Remember, when combining fractions via addition or subtraction, you must have a common denominator.
Write the fraction as a decimal.
2/9
0.222222222....
What is the coefficient of the 3rd term?
-3x + 4y - 6x + 3
-6
A coefficient is a number in front of a variable.
4a^2b-5a+6a^2b-7
10a^2b-5a-7
-6(2-m)
-12 + 6m
2 + (3x-1)/4
(3x+7)/4
Write the decimal as a mixed fraction. Be sure to simplify.
4.05
4 1/20
-3x^2 + 4y - 5
What is the constant term?
-5
A constant has no variable; if you do not see a constant, it is 0.
3b^2-4a-9a-12b^2+13
-9b^2-13a+13
-(5+3x-7y)
-5 - 3x + 7y
(-2-4x)/5 - 3x
(-2-19x)/5
Evaluate the following:
5-4(3-8)^2-:5
-15
Create your own expression that has 2 unlike terms and 1 constant.
Answers will vary.
9xy + 7 - 8yx - 13 + xy
2xy - 6
5(3c-10)-4(8+c)
11c -82
4x+(3-6x)/4
(10x + 3)/4
What is the difference between the square of a number and the square root of a number? Include examples.
Square rooting a number undoes the operation of squaring to find what number squared itself to get there.