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banna01man
14.07.2019 •
Mathematics
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
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Ответ:
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 .
Ответ:
Step-by-step explanation: