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anonymous

  • one year ago

Evaluate the expression below when x = -2. x2 − 8 x + 6 -3 -1 1 2 3 2

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  1. anonymous
    • one year ago
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    can someone help me

  2. anonymous
    • one year ago
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    @Nnesha

  3. Nnesha
    • one year ago
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    substitute x for -2

  4. Nnesha
    • one year ago
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    \[\huge\rm \color{Red}{x}^2-8\] replace x with -2 and then solve!

  5. anonymous
    • one year ago
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    ok think you so much

  6. Nnesha
    • one year ago
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    wait i don't get it there are two expression x^2-8 and x+6 right ?

  7. anonymous
    • one year ago
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    ya

  8. Nnesha
    • one year ago
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    can you take a screenshot of ur question plz ?

  9. anonymous
    • one year ago
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    how do you do that

  10. Nnesha
    • one year ago
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    press \(\huge\color{green}{\rm PrntSCr}\) and then paste that into *paint * save it click on attach file button to post

  11. Nnesha
    • one year ago
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    if you are using chrome then you can add this extension https://chrome.google.com/webstore/detail/lightshot-screenshot-tool/mbniclmhobmnbdlbpiphghaielnnpgdp?utm_source=chrome-app-launcher-info-dialog

  12. anonymous
    • one year ago
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  13. anonymous
    • one year ago
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    is that it

  14. Nnesha
    • one year ago
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    ohh division you should use */* to show something is dividing \[\frac{ x^2 -8}{ x+6 }\] now substitute x for -2

  15. Nnesha
    • one year ago
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    let me know what you get :)

  16. anonymous
    • one year ago
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    I got -2/4

  17. Nnesha
    • one year ago
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    how did you get -2 at the numerator ?

  18. Nnesha
    • one year ago
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    remember it's x^2 so you should take square of -2

  19. anonymous
    • one year ago
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    what are you talking about idk this stuff

  20. anonymous
    • one year ago
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    @triciaal

  21. Nnesha
    • one year ago
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    \[\huge\rm \frac{ \color{reD}{x}^2 -8}{ x+6 }\] substitute x for -2 put the parentheses

  22. Nnesha
    • one year ago
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    \[\huge\rm \frac{ (?)^2+8 }{ (?)+6 }\]do you see the question marks that's where you should put -2

  23. anonymous
    • one year ago
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    yes I see it but I need a calculator

  24. Nnesha
    • one year ago
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    you don't really need one.

  25. Nnesha
    • one year ago
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    \[\huge\rm \frac{ (-2)^2+8 }{ (-2)+6 }\] (-2)^2 is same as -2 times -2

  26. anonymous
    • one year ago
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    why do we do -2 times-2

  27. Nnesha
    • one year ago
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    (-2)^2 means -2 times -2

  28. anonymous
    • one year ago
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    ok I just got a calculator and I got 14

  29. anonymous
    • one year ago
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    @Elsa213

  30. anonymous
    • one year ago
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    @Hero

  31. Nnesha
    • one year ago
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    how did you get 14 ? what is -2 times -2 ?

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