Exercise 2: Concepts

Practice the essential concepts to simplify algebraic expressions

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QUESTION OF
Views #: 635
Questions #: 13
Time: 10 minutes
Pass Score: 80.0%
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What is the property used to simplify the following expression?

1 pts
volume_mute

4(9t) = (4 • 9)t = 36t

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Explanation

What is the property used to simplify the following expression?

1 pts
volume_mute

-6y • 2 = -6 • 2 • y = -12y

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Explanation

Fill in the blanks with the appropriate sign

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

Fill in the blanks to combine like terms

1 pts
  1. 4m + 6m = ((1) + (2))m = (3)m
  2. 30n2 - 50n2 = ((4) - (5))n2 = (6)n2
  3. 12 + 32d + 15 = 32d + (7)
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Explanation

Fill in the blanks

1 pts

Like terms can be combined by adding or subtracting the (1) of the term and keeping the same (2) with the same exponents.

Please drag and drop the selected option in the right place or type it instead
variables
coefficients
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Explanation

Simplify the following expression

1 pts

5(2x)

Do not change the order of coefficients and variables

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Explanation

Simplify the following expression

1 pts

5 + 2x

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Simplify the following expression

1 pts

6(-7x)

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Explanation

Simplify the following expression

1 pts

6 -7x

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Explanation

Simplify the following expression

1 pts

2(3x)(3)

Missing
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Explanation

Simplify the following expression

1 pts

2 + 3x + 3

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

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Explanation

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

1 pts
Missing
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Explanation

Add the missing sign

1 pts

-(x + 10) = -x (1) 10

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Explanation

✕
0
sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC
Keywords
Year 7