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Expert: Sherman D. - 7/7/2005


Question
Which describes the number and type of roots of the equation of x^3-4x^2+50x+7=0? Is it 1 positive, 2 negative...2 positive, 1 negative...3 negative..or 3 posivitve?

Answer
x^3 - 4x^2 + 50x + 7 = 0

Since i don't know how to factor all cubic equations, i went to www.quickmath.com, clicked on Solver under Equations, then i typed in x^3 - 4x^2 + 50x + 7 = 0 exactly like that, and it gave me

1 real
2 complex

x = -.138414
x = 2.06921 + 6.80376i
x = 2.06921 - 6.80376i

so if you are don't wanting 3 real values, then the answer is

1 positive, 2 negative, so the first answer is correct.

by the way, some cubic equations can have just one answer, if you have something like this, (ax + b)^3

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Sherman D.

Expertise

I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.

Experience

Mathematics, Recipes, History, and Games.

Education/Credentials
High School graduated. I graduated with honors, and i was in Beta Club for a year and a half.

Awards and Honors
Principle's list and A and B honor roll in high school only.

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