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Mathematics
Kolby
19 September, 22:19
Find the product of (3x + 7y) ^2
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Kadyn Walter
19 September, 23:05
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So I do the box method
3x*3x = 9x^2
3x*7y = 21xy
7y*3x=21xy
7y*7y = 49y
Add together 21xy plus 21xy
So you are left with:
9x^2+42xy+49y
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Maddox Herring
20 September, 00:47
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9x^2+42xy+49y in terms of (a+b) ^2
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