Question:

How do you solve this? x^2 – 4x – 5 over x^2 + 6x +5 divided by x^2 – 7x +10 over x^2 +3x - 10?

by Guest61018  |  earlier

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Thanks in advance for the assistance....

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2 ANSWERS


  1. To give a LITTLE more detail:

    1. factor all the terms

    2. flip the second fraction and change to multiplication

    3. cancel like terms in numerator and denominator

    4. multiply/combine the terms that remain.

    If you can do each step, you can do the whole thing...

    hope this gets you started.


  2. Factor as much as you can before multiplying or dividing.

    (x^2 – 4x – 5/ x^2 + 6x +5) / (x^2 – 7x +10/ x^2 +3x - 10)

    (x–5)(x+1)/(x+5)(x+1)) / (x–2)(x-5)/ (x-2)(x+5)

    (x–5)/(x+5) / (x-5)/(x+5) invert and multiply

    everything reduces to 1

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