Which expression is equivalent to mc009-1.jpg?

Question

Which expression is equivalent to ?

Comments

2. Barbara used the distributive property to write an expression that is equivalent to . Her work is shown below. 

The greatest common factor is 7 so 

What was Barbara’s error?

Barbara wrote  instead of .

Barbara wrote  instead of .

Barbara wrote  instead of .

Barbara wrote  instead of .

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3. Emily is substituting  and  to determine if the two expressions are equivalent.

                        

Which statement is true?

Both expressions are equivalent to 24 when .

Both expressions are equivalent to 44 when .

Both expressions are equivalent to 46 when .

The expressions are not equivalent.

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4. Which expression is equivalent to ?

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5. Which expression is equivalent to ?

8x

Answer 1

1. 2
2. 2
3. 1
4. 2
5. 2