anonymous
  • anonymous
Find the product of (3x + 7y)^2 9x^2 − 42xy + 49y^2 9x^2 − 49y^2 9x^2 + 49y^2 9x^2 + 42xy + 49y^2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
D. because that problem pretty much means (3x+7y)*(3x+7y) you multiply the to 3x first to get 9x^2 then you multiply 3x times 7y to get 21xy then 7x gets multiplied by 3x to get another 21xy then 7y gets * 7x to get 21y^2 last add like terms meaning 21xy+21xy and you get 42xy

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