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How to solve this problem (4x+3y)2=
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2 votes
How to solve this problem (4x+3y)2=

User John Doty
by
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2 Answers

7 votes
(4x + 3y)² = (4x + 3y)(4x + 3y)

(4x + 3y)(4x + 3y) = 4x(4x + 3y) + 3y(4x + 3y)

4x*4x + 4x*3y + 3y*4x + 3y*3y

16x² + 12xy + 12xy + 9y²

16x² + 24xy + 9y²

Therefore (4x + 3y)² = 16x² + 24xy + 9y²

I hope this helps.
User Stephen Friederichs
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8.4k points
7 votes
you need to distribute the 2 so it equals 8x+6y
User AlexanderLedovsky
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