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anonymous

  • one year ago

Solve x2 + 6x + 7 = 0. x = −1 and x = −5 3 plus or minus square root of 2 negative 3 plus or minus square root of 2 quantity of negative 3 plus or minus square root of 2 all over 2

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  1. Nnesha
    • one year ago
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    apply the quadratic formula \[\huge\rm x=\frac{ -b \pm \sqrt{b^2-4ac} }{ 2a }\] plugin a ,b ,c values \[\huge\rm Ax^2+Bx+C\]quadratic equation where a=leading coefficient b=middle term c=constant term

  2. Nnesha
    • one year ago
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    what is a in that equation a= ? b=? c=?

  3. anonymous
    • one year ago
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    1

  4. Nnesha
    • one year ago
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    yes right a =1 b= ? c=??

  5. Nnesha
    • one year ago
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    b =middle term c=constant

  6. anonymous
    • one year ago
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    6x

  7. anonymous
    • one year ago
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    7

  8. Nnesha
    • one year ago
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    just the coefficient so b=6 a=1,b=6, c=7 now substitute a , b ,c for their values into quadratic formula

  9. anonymous
    • one year ago
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    okay

  10. anonymous
    • one year ago
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    This method works just fine. However, in this problem, it would be easier to factor.

  11. anonymous
    • one year ago
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    would it be d?

  12. Nnesha
    • one year ago
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    it's not factorable.

  13. Nnesha
    • one year ago
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    and no what did you get 't the numerator ?

  14. anonymous
    • one year ago
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    -3 plus or minus the suare root of -22

  15. Nnesha
    • one year ago
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    hmm no how did you get -22 ???

  16. anonymous
    • one year ago
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    i had done 6- (4)(1)(7), but i realize 6 needs to be squared, so i now get -3 +- square root of 2?

  17. anonymous
    • one year ago
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    2

  18. Nnesha
    • one year ago
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    ugghhhhh nvm sorry latex arn't working

  19. anonymous
    • one year ago
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    what...?

  20. Nnesha
    • one year ago
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    yes that's right take square of 6

  21. Nnesha
    • one year ago
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    i was trying to type that into the equation tool but it's not loading

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