anonymous
  • anonymous
Which expression is a factor of 2xy + 6x – 3y – 9? 2x – 3 2y + 3 x – 2 y – 3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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amistre64
  • amistre64
if we divide and get a remainder of zero , then its a factor
amistre64
  • amistre64
6 + 2y + y/x ----------------- x-2 ) 6x + 2xy – 3y – 9 (6x - 12) -------------- 2xy - 3y - 9 + 12 (2xy -4y) ----------------- y + 3 (y - 2y/x) ------------ im gonna assume this aint a factor :)
amistre64
  • amistre64
http://www.wolframalpha.com/input/?i=factor++2xy+%2B+6x+%E2%80%93+3y+%E2%80%93+9 the wolf says 2x-3, so lets see if my hunch pans out ....

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amistre64
  • amistre64
3 + y ----------------- 2x-3 ) 6x + 2xy – 3y – 9 (6x -9) ------------------ 2xy - 3y (2xy - 3y) --------- 0 it works!! yay :)

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