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BMI229

  • one year ago

Create your own quadratic equation and demonstrate how it would be solved by graphing, factoring, the quadratic formula, and by completing the square.

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  1. TAKEBACKMATH
    • one year ago
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    x2 + 6x + 8

  2. BMI229
    • one year ago
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    how it would be solved by graphing, factoring, the quadratic formula, and by completing the square.

  3. TAKEBACKMATH
    • one year ago
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    okay completeing teh square: x2+6x +8=0 x2 +6x = -8 move the 8 over use this formula (b/2)~2 so its (6/2)~2 oe (3)~2 = 9 x2 +6x +9 = -8 +9 add the 9 to both sides (x+3)~2 = 1 \[(x+3)^{2} = 1\]

  4. TAKEBACKMATH
    • one year ago
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    then

  5. TAKEBACKMATH
    • one year ago
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    \[\sqrt{(x+3)^{2}} = \pm \sqrt{1}\] sqaure root both sides

  6. TAKEBACKMATH
    • one year ago
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    x+3 = + or - 1 -3 -3 subtract 3 from both sides x=+1 -3 and -1-3 or -2, -4

  7. BMI229
    • one year ago
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    and thats the answer

  8. TAKEBACKMATH
    • one year ago
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    x= -2, -4 yes

  9. TAKEBACKMATH
    • one year ago
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    for completing the sqaure

  10. BMI229
    • one year ago
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    thank you you've been a big help

  11. TAKEBACKMATH
    • one year ago
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    great

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