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anonymous

  • 4 years ago

can someone explain to me how to solve 5x^2-21x-20/5x^2-16x-16

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  1. anonymous
    • 4 years ago
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    factor: ((x-5)(5x+4))/((x-4)(5x+4)) cancel out 4x+4 (x-5)/(x-4)

  2. anonymous
    • 4 years ago
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    *5x+4

  3. anonymous
    • 4 years ago
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    I think you mean how to symplify or do the division.

  4. anonymous
    • 4 years ago
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    both?

  5. anonymous
    • 4 years ago
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    Did you understand how to solve the problem? Can you do a similiar problem by yourself?

  6. anonymous
    • 4 years ago
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    i can do problems such as : 4x+3/5 but when it becomesmore than that it becomes confusing

  7. anonymous
    • 4 years ago
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    that was just an example

  8. anonymous
    • 4 years ago
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    So if you have something like \[\frac{4x+3}{x+5}\] you have problems

  9. anonymous
    • 4 years ago
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    i've never done a problem like that in my lessons, i've had things like x^2-15x+56/ x-7 or with more terms

  10. dumbcow
    • 4 years ago
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    practice factoring, if you are good at factoring those problems become easy

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spraguer (Moderator)
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