SOLUTION: Write a quadratic equation having the given numbers as solutions.
{{{1-sqrt(21)/3}}},{{{1+sqrt(21)/3}}}
Algebra.Com
Question 745857: Write a quadratic equation having the given numbers as solutions.
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Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Write a quadratic equation having the given numbers as solutions.
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:
x =
Write is as single fraction
x =
multiply both sides by 3
3x =
subtract 3 from both sides, we can combine plus and minus
3x - 3 = +/-
Square both sides
= 21
FOIL (3x-3)(3x-3); subtract 21 from both sides
9x^2 -18x + 9 - 21 = 0
y = 9x^2 - 18x - 12 is the equation
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