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Countrygirl123:
help
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leemarlowe:
multiply all sides
Countrygirl123:
@snowflake0531
snowflake0531:
To find surface, find the area of the 3 unique sides, and multiply that by 2
snowflake0531:
What is 3x * 3x What is 3x*3y What is 3x*3y
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Countrygirl123:
9x 9xy
snowflake0531:
It would actually be \[9x^2\] and 9xy and 9xy
snowflake0531:
Adding them together, you get \[9x^2 + 18xy\] not multiply that by 2
snowflake0531:
*now not not
Countrygirl123:
so that? 9x^2+18xy * 2
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snowflake0531:
No, multiply that by 2
snowflake0531:
\[18x^2 + 36xy\]
Countrygirl123:
ok i get it now
snowflake0531:
yw
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