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harkovskaia [24]

3 years ago

7

Look at the student work shown below.

1 answer:

EastWind [94]3 years ago

8 0

Hey there :)

4t ( 2s - 7 )
We need to apply what is called the distributive property.

The student did a mistake by not distributing 4t to both values inside the bracket
The distributive property is used to get rid of the parenthesis/bracket

The student's answer should be:
4t ( 2s ) + 4t ( - 7 )
8st - 28t

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