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anonymous

  • one year ago

PLEASE HELP!!!!! Given the expression 5a^2b – 13ab + 7a^3 – 4b, a. Write the polynomial in descending order. b. Classify the polynomial by the number of terms. c. State the degree of the polynomial.

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  1. CGGURUMANJUNATH
    • one year ago
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    7a^3+5a^2b-13ab-4b

  2. CGGURUMANJUNATH
    • one year ago
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    powers should decrease - decreasing

  3. CGGURUMANJUNATH
    • one year ago
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    *order

  4. anonymous
    • one year ago
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    how do you know that 7a^3 goes first, and not 5a^2b ?

  5. triciaal
    • one year ago
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    |dw:1440877335943:dw|

  6. anonymous
    • one year ago
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    I know, but b has one power two, so wouldn't 7a^3 and 5a^2b be the same?

  7. anonymous
    • one year ago
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    *too

  8. CGGURUMANJUNATH
    • one year ago
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    a^3 has power 3 ; a^2b has 2+1=3 power

  9. anonymous
    • one year ago
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    right, so how do you know which one should go first?

  10. CGGURUMANJUNATH
    • one year ago
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    5a^2b+7a^3-13ab-4b is also correct ! :)

  11. anonymous
    • one year ago
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    oh, ok.

  12. CGGURUMANJUNATH
    • one year ago
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    :)

  13. anonymous
    • one year ago
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    so, for b., would this just be called a polynomial since there isn't really a term for polynomials of 4 terms?

  14. CGGURUMANJUNATH
    • one year ago
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    http://www.purplemath.com/modules/polydefs.htm

  15. anonymous
    • one year ago
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    so what do I say for b? just polynomial?

  16. triciaal
    • one year ago
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    no it ask for the number of terms

  17. anonymous
    • one year ago
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    what?

  18. CGGURUMANJUNATH
    • one year ago
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    polynomial with degree 3

  19. triciaal
    • one year ago
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    sorry that is a weird question already know it is a polynomial

  20. triciaal
    • one year ago
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    polynomials can be classified by degree or number of terms

  21. CGGURUMANJUNATH
    • one year ago
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    b) polynomial with 4 terms . c) degree 3

  22. anonymous
    • one year ago
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    okay. thanks guys :)

  23. triciaal
    • one year ago
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    you are welcome

  24. CGGURUMANJUNATH
    • one year ago
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    :)

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