Question

Which expressions represent the difference of exactly two expressions? Choose 3 answers: Choose 3 answers: (Choice
a. A 6(x+7)−26(x+7)-26(x+7)−26, left parenthesis, x, plus, 7, right parenthesis, minus, 2 (Choice
b. B −2j-2j−2jminus, 2, j (Choice
c. C 4f−2g4f-2g4f−2g4, f, minus, 2, g (Choice
d. D 3xyz−103xyz-103xyz−10

Answer 1

Solution

To find out which expressions represent the difference of exactly

two expressions

a) 6(x+7) - 2

This can be simplified as

6x + 42 - 2

6x + 40

Clearly this does not represent difference of the two

expressions .

b) -2j

Clearly this represents a single expression , this does not represent

a difference of 2 expression .

c) 4f - 2g

Here we have 2 different expressions 4f and 2g

Difference of these 2 expressions are 4f - 2g

Hence , this option represent difference of exactly two

expression

d) 3xyz - 10

3xtz - 10 represnts a single expression

Here we have a single expression

Therefore it does not represent difference of exactly 2

expression .

Answer 2

Anwser:Solution

To find out which expressions represent the difference of exactly

two expressions

a) 6(x+7) - 2

This can be simplified as

6x + 42 - 2

6x + 40

Clearly this does not represent difference of the two

expressions .

b) -2j

Clearly this represents a single expression , this does not represent

a difference of 2 expression .

c) 4f - 2g

Here we have 2 different expressions 4f and 2g

Difference of these 2 expressions are 4f - 2g

Hence , this option represent difference of exactly two

expression

d) 3xyz - 10

3xtz - 10 represnts a single expression

Here we have a single expression

Therefore it does not represent difference of exactly 2

expression .

Explanation: