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Tresag Group Title

simplify to the lowest terms 16a^2/4a+11b-121b^2/4a+11b

  • one year ago
  • one year ago

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  1. gaara438125 Group Title
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    \[\frac{ 16a^2 }{ 4a + 11 } - \frac{ 121b^2 }{ 4a + 11b }\] i'm guessing you meant that?

    • one year ago
  2. Tresag Group Title
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    yes

    • one year ago
  3. gaara438125 Group Title
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    find an LCD which in this case is?

    • one year ago
  4. Tresag Group Title
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    i don't know...nothing goes into 121

    • one year ago
  5. gaara438125 Group Title
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    the LCD is least common denominator, so the left fraction's denominator is the same as the right 4a + 11b is the LCD

    • one year ago
  6. Tresag Group Title
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    ok

    • one year ago
  7. Tresag Group Title
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    so how do I find the lowest term ?

    • one year ago
  8. Tresag Group Title
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    is the answer 105/4a+11b ?

    • one year ago
  9. gaara438125 Group Title
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    since the right side's denominator is already 4a + 11b we have to multiply the left sides to look like that as well we're missing a B so we multiply the numerator and denominator by B/B so it now looks like \[\frac{ 16a^2b }{ 4a + 11b } - \frac{ 121b^2 }{ 4a + 11b }\]

    • one year ago
  10. gaara438125 Group Title
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    \[\frac{ 16a^2 - 121b^2 }{ 4a + 11b }\]

    • one year ago
  11. Tresag Group Title
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    ok

    • one year ago
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