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EmmaH

  • 2 years ago

someone please help me!! Find the GCF of the monomials: 18x2, 30x2y, and 54y 18 6 18xy 6xy

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  1. blondie16
    • 2 years ago
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    well it cant have an x or y because not all of them have x and y so now you just have to figure out the greatest number that goes into all 3 of the numbers

  2. EmmaH
    • 2 years ago
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    i mean i just dont understand itwhat it wants me to do?

  3. blondie16
    • 2 years ago
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    find the biggest number that goes into all 3 of the numbers

  4. EmmaH
    • 2 years ago
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    80,30, ande 54?

  5. blondie16
    • 2 years ago
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    yes

  6. EmmaH
    • 2 years ago
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    2

  7. blondie16
    • 2 years ago
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    sorry it is 18* 30 and 54 and look at your answer choices. then try it

  8. EmmaH
    • 2 years ago
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    how do i find the biuggest number that goe sinto all of them?

  9. blondie16
    • 2 years ago
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    take each number and divide it by 6, then if all of that works, try 18

  10. satellite73
    • 2 years ago
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    \[18=2\times 3^2, 30=2\times 3\times 5,54=2\times 3^3\] greatest common factor is \[2\times 3=6\]

  11. blondie16
    • 2 years ago
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    or you could do it that way...

  12. EmmaH
    • 2 years ago
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    i got 18= 2,3,6,9 30= 2,3,5,6,10 54= 2,27 so is it 2?

  13. blondie16
    • 2 years ago
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    @satellite73 is right. for 54 you didnt get all of the factors

  14. EmmaH
    • 2 years ago
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    i made a mistake the gfc is 6 right?

  15. blondie16
    • 2 years ago
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    yes

  16. EmmaH
    • 2 years ago
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    the answer is b?

  17. blondie16
    • 2 years ago
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    yesh

  18. EmmaH
    • 2 years ago
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    thanks!

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