Exercise 2: Concepts

Practice the essential concepts to simplify algebraic expressions
👁 257
statistics
calculate
Questions #: 13
Time: 10 minutes
Pass Score: 80.0%
Style
Mode

What is the property used to simplify the following expression?

4(9t) = (4 • 9)t = 36t

POINTS (1)

Correct Answer

Explanation

What is the property used to simplify the following expression?

-6y • 2 = -6 • 2 • y = -12y

POINTS (1)

Correct Answer

Explanation

Fill in the blanks with the appropriate sign

  1. 2(x + 4) = 2x 8
  2. 2(x - 4) = 2x 8
  3. -2(x + 4) = -2x  8
  4. -2(-x - 4) = 2x 8
POINTS (1)

Correct Answer

Explanation

Fill in the blanks to combine like terms

  1. 4m + 6m = ( + )m = m
  2. 30n2 - 50n2 = ( - )n2 = n2
  3. 12 + 32d + 15 = 32d +
POINTS (1)

Correct Answer

Explanation

Fill in the blanks

Like terms can be combined by adding or subtracting the of the term and keeping the same with the same exponents.

drag and drop the selected option to the right place or type it instead
variables
coefficients
POINTS (1)

Correct Answer

Explanation

Simplify the following expression

5(2x)

Do not change the order of coefficients and variables

Missing
POINTS (1)

Correct Answer

Explanation

Simplify the following expression

5 + 2x

POINTS (1)

Correct Answer

Explanation

Simplify the following expression

6(-7x)

Missing
POINTS (1)

Correct Answer

Explanation

Simplify the following expression

6 -7x

POINTS (1)

Correct Answer

Explanation

Simplify the following expression

2(3x)(3)

Missing
POINTS (1)

Correct Answer

Explanation

Simplify the following expression

2 + 3x + 3

Start with the terms that do not have variables and do not change the order of coefficients and variables. 

POINTS (1)

Correct Answer

Explanation

Distributing multiplication by -1 changes the ______ of each term within the parentheses

Missing
POINTS (1)

Correct Answer

Explanation

Add the missing sign

-(x + 10) = -x  10

POINTS (1)

Correct Answer

Explanation

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