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anonymous

  • 5 years ago

binomial theorem expand (5+2y)^3

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  1. sandra
    • 5 years ago
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    http://en.wikipedia.org/wiki/Binomial_theorem these things follow a pattern, and this one ends up: 8y^3 + 60y^2 +150y +125

  2. sandra
    • 5 years ago
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    you could also solve this by multiplying (5+2y)(5+2y)(5+2y) (the first set of terms, and then the second

  3. anonymous
    • 5 years ago
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    thank you ive been working on this for hoursssss

  4. sandra
    • 5 years ago
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    ok no problem!

  5. anonymous
    • 5 years ago
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    i have another.. if you dont mind. two actually. (x-2y)^4 (1/3 + x)^3

  6. anonymous
    • 5 years ago
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    its not homework. like review problems. but my teacher is horrible at teaching.

  7. anonymous
    • 5 years ago
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    5\[5^{3}+3(5)^{2}2y+3(5)(2y)^{2}+(2y)^{3}\]

  8. anonymous
    • 5 years ago
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    go to google it will give you answers i've tryed it but sometimes it doesnt work

  9. anonymous
    • 5 years ago
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    use pascals triangle for the coefficients 1 1 1 1 2 1 1 3 3 1

  10. anonymous
    • 5 years ago
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    i dont understand that because i wasnt in class. i understood the answer you just gave though..

  11. anonymous
    • 5 years ago
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    like (x-2y)^4 expand.. how would i do that.

  12. anonymous
    • 5 years ago
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    \[x ^{4}+4x ^{3}(-2y)+6x ^{2}(-2y)^{2}+4x(-2y)^{3}+(-2y)^{4} \] the next row of the triangle would be 1 4 6 4 1

  13. anonymous
    • 5 years ago
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    what do you mean ^^^ is that the final answer?>

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