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zahabaha Group Title

HOW WULD U FACTOR THIS :)) 10x2 − 7x − 3

  • one year ago
  • one year ago

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  1. NotTim Group Title
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    Ok, what 2 numbers add to 7 and multiply to the last and first numbers?

    • one year ago
  2. zahabaha Group Title
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    4 and 3

    • one year ago
  3. NotTim Group Title
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    and multiply to 30?

    • one year ago
  4. zahabaha Group Title
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    um 3

    • one year ago
  5. cwrw238 Group Title
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    you need to factor 10 and -3 and and combine them so multiplying and addingg will give -7

    • one year ago
  6. NotTim Group Title
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    When I say add, you can 'add' negative nubmers too

    • one year ago
  7. zahabaha Group Title
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    umm idk

    • one year ago
  8. cwrw238 Group Title
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    10 * 1 1 * -3

    • one year ago
  9. zahabaha Group Title
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    oh ok then wat do i do

    • one year ago
  10. cwrw238 Group Title
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    |dw:1344725357896:dw|

    • one year ago
  11. cwrw238 Group Title
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    the 10 * -1 and 1 * +3 so its (10x + 3)(x - 1)

    • one year ago
  12. zahabaha Group Title
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    can u like show me step by step under eachother without drwing

    • one year ago
  13. cwrw238 Group Title
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    well - this is the way i do it you have to consider the possibilities 10 could factor to 5 * 2 or 10 * 1 and -3 could be 1 * -3 or -1 * 3 so you have to try out different combinations so as to obtain -7 (the middle term) thats how i got 10*1 and 1 * -3 - these factor to the form (ax + b)(cx + d) and adx + bcd is the middle term thats how the result is (10x - 3)(x + 1) the (10 * 1) + (-3 * 1) gives the -7

    • one year ago
  14. cwrw238 Group Title
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    these are a bit tricky - and need some practice before you get proficient

    • one year ago
  15. zahabaha Group Title
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    8x2 − 11x + 3

    • one year ago
  16. zahabaha Group Title
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    how uld i factor this one

    • one year ago
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