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anonymous

  • one year ago

Simplify 7x2 + 4.5y – 3y + x2 – 5x The answer is 8x^2 -5x + 1.5y Please explain how someone got this answer, thanks.

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  1. anonymous
    • one year ago
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    combine like terms first

  2. anonymous
    • one year ago
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    4.5 y - 3.5 y = 1.5 y like this?

  3. anonymous
    • one year ago
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    7x^2 + x^2 = 8^2

  4. anonymous
    • one year ago
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    mhm

  5. anonymous
    • one year ago
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    all terms with x^2 are like terms, all with x are like terms, and all with y are like terms

  6. anonymous
    • one year ago
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    you already got the x^2's so lets do the x's: theres only one x which is -5 so we keep it like that

  7. anonymous
    • one year ago
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    now y's :theres 4.5 and -3 so 4.5 - 3 = 1.5. the two y terms combined = 1.5y

  8. anonymous
    • one year ago
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    I get it now, Thanks!

  9. anonymous
    • one year ago
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    +1

  10. anonymous
    • one year ago
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    anytime

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