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tiawanad

  • 2 years ago

pLEASE CHECK MY WORK TO SEE IF i AM CORRECT 28x^2-6x+1 28(-4)^2-6(4)+1 Then I need help

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  1. tiawanad
    • 2 years ago
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    (gof) (-4)

  2. amistre64
    • 2 years ago
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    you need to use -4 in each x spot ...

  3. tiawanad
    • 2 years ago
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    I thought that I did that above 28(-4)-6(-4)+1 right

  4. tiawanad
    • 2 years ago
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    sorry for got the 28(-4)^2

  5. amistre64
    • 2 years ago
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    better, and remember that -*- = +

  6. tiawanad
    • 2 years ago
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    so that would be 28*4=112^2 right

  7. amistre64
    • 2 years ago
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    28(-4)^2 -6(-4) + 1 28(16) +24 + 1 280 + 120 + 48 +25

  8. amistre64
    • 2 years ago
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    28*4 = 80 + 32 = 112 yes

  9. tiawanad
    • 2 years ago
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    so 112-24+1=89 but my test said that was wrong so would you add 112+24+1

  10. amistre64
    • 2 years ago
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    the 112 still needs to be multiplied by the other 4

  11. amistre64
    • 2 years ago
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    112*4 = 400+40+8

  12. tiawanad
    • 2 years ago
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    so 448

  13. amistre64
    • 2 years ago
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    and its not -24 .. -6(-4) = 24, to negatives gets a postive

  14. tiawanad
    • 2 years ago
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    that is right two negatives make positive so the answer would be 448 correct

  15. amistre64
    • 2 years ago
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    448 + 24 + 1 = ?

  16. tiawanad
    • 2 years ago
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    the answer was 473???

  17. tiawanad
    • 2 years ago
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    Ok I have four problems that goes with the pair of functions can you help me and I wont bug you no more tonight

  18. amistre64
    • 2 years ago
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    448 + 24 + 1 468 + 4 + 1 472 + 1 = 473

  19. amistre64
    • 2 years ago
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    i cant make that promise, its getting late over here where i am and il have to leave soon

  20. tiawanad
    • 2 years ago
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    f(x)=3x g(x)=7x^2-4x+6

  21. amistre64
    • 2 years ago
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    post it up as a new question and see if anyone bites :)

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