we recongize that it is for x and y
x^2+18xy+81y^2
= x^2 + 2.x(9y) + (9y)^2
= (x+9y)^2
2006-10-15 16:35:10
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answer #1
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answered by Mein Hoon Na 7
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It's (x+4)(x-4) x^2-16 is an example of the difference of two squares.
2016-03-28 10:58:04
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answer #2
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answered by Anonymous
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(x+9y)(x+9y)=x^2+18xy+81y^2
goodluck!
2006-10-15 16:47:06
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answer #3
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answered by Anonymous
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(x+9y)^2
This was a really easy factoring to do, compared to other quadratic equations. Do you know how to do these? Do you want me to explain how to do them? Let me know!
2006-10-15 16:34:20
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answer #4
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answered by djc 3
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this is a perfect square
x^2+2(x)(9y)+(9y)^2=(x+9y)^2
2006-10-15 16:34:56
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answer #5
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answered by khotl73 2
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(x+9)^2
2006-10-15 16:35:06
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answer #6
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answered by cmadame 3
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(x+9y)(x+9y)=(x+9y)^2
2006-10-15 16:34:29
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answer #7
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answered by raj 7
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(x+9y)^2
This was very easy.
2006-10-15 16:35:09
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answer #8
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answered by ironduke8159 7
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(x + 9y)(x+9y)
2006-10-15 16:34:35
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answer #9
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answered by selfwarmingsocks 2
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(x+9y) (x+9y)
2006-10-15 16:35:09
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answer #10
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answered by Anonymous
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