Algebra Quiz 3: Properties of the Real
Numbers" and 1 other / Certified Exam Q&A /
2025.
How many terms are in the expression 5m to the 2nd power - mn + 4n + 7? - Answer: 4
Select all of the terms that are "like." - Answer: 2xy
-xy
1/2xy
Simplify 11(2x + 3). - Answer: 22x + 33
Simplify 8(3 - 2x). - Answer: 24 - 16x
Simplify 81.56 + n - 2.55. - Answer: 79.01 + n
Simplify 3x + 3 + 2. - Answer: 3x + 5
Simplify 2x + x. - Answer: 3x
Simplify -12x + 5x. - Answer: -7x
Simplify 3x + (-12x) - 5x. - Answer: -14x
, Simplify 5x + 4x + 1. - Answer: 9x + 1
Simplify -3 xy to the 3rd power + 7 xy to the 3rd power + (- xy to the 3rd power ) + (-3 xy to the
3rd power ). - Answer: 0
Simplify 6(x + 2) + 7. - Answer: 6x + 19
Simplify -4(N + 9). - Answer: -4N - 36
Simplify 4 n to the 5th power + 3.5 n to the 5th power + (-2.1 n to the 5th power ). - Answer: 5.4
n to the 5th power
Match each step with the property used to get to that step. (Note: The steps in the left column
are listed in the correct order needed to simplify the expression.)
(6x + 3) - 5x
1. commutative
2. distributive
3. associative
4. subtraction
5. multiplicative identity - Answer: 1. (3 + 6x) - 5x
2. 3 + (6 - 5)x
3. 3 + (6x - 5x)
4. 3 + (1)x
5. 3 + x