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Alg 2 help
Use the Rational Root Theorem to list all possible rational roots of 3x3 + x2 – 15x – 5 = 0. Then find any actual rational roots.
Find the roots of 10x4 + x3 + 7x2 + x – 3 = 0
A polynomial equation with rational coefficients has the roots Sq rt of 7 and –5i. Find two additional roots
Find a thirddegree polynomial equation with integer coefficients that has the roots 8 and 3i.
 one year ago
 one year ago
Alg 2 help Use the Rational Root Theorem to list all possible rational roots of 3x3 + x2 – 15x – 5 = 0. Then find any actual rational roots. Find the roots of 10x4 + x3 + 7x2 + x – 3 = 0 A polynomial equation with rational coefficients has the roots Sq rt of 7 and –5i. Find two additional roots Find a thirddegree polynomial equation with integer coefficients that has the roots 8 and 3i.
 one year ago
 one year ago

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swe100Best ResponseYou've already chosen the best response.0
The rational root theorem states that any rational root of a polynomial will be of the form p/q, where p is a factor of the constant term and q is a factor of the leading coefficient. The leading coefficient is 10, so the factors are 10, 5, 2, 1, 1, 2, 5, and 10. The constant term is 3, so the factors are 3, 1, 1, and 3. The possible rational roots are 3/10, 1/10, 3/5, 1/5, 3/2, 1/2, 3/1, 1/1, 1/1, 3/1, 1/2, 3/2, 1/5, 3/5, 1/10, and 3/10.
 one year ago

jacksonjrrodneyBest ResponseYou've already chosen the best response.0
can you be more clear i still dont know the answer
 one year ago

swe100Best ResponseYou've already chosen the best response.0
I listed a big list of fractions at the end, those are all the possible roots from the rational root theorem. (I know, it's a big list)
 one year ago

swe100Best ResponseYou've already chosen the best response.0
Oh oops I found the roots of the wrong equation
 one year ago

swe100Best ResponseYou've already chosen the best response.0
The leading coefficient is 3 and the constant term is 5, so the roots are 5/3, 5/1, 1/1, 1/1, 5/1, and 5/3
 one year ago

jacksonjrrodneyBest ResponseYou've already chosen the best response.0
which number is this, one right?
 one year ago

jacksonjrrodneyBest ResponseYou've already chosen the best response.0
@sauravshakya do you understand this??
 one year ago

precalBest ResponseYou've already chosen the best response.0
you should post your questions one at a time because it will be confusing for you to understand our postings
 one year ago

julliemyersBest ResponseYou've already chosen the best response.8
what unit and lesson?
 one year ago

jacksonjrrodneyBest ResponseYou've already chosen the best response.0
Theorems About Roots of Polynomial Equations
 one year ago

julliemyersBest ResponseYou've already chosen the best response.8
1. Use the Rational Root Theorem to list all possible rational roots of the polynomial equation x3 – x2 – x – 3 = 0. Do not find the actual roots. (1 point) (1 pt) –3, –1, 1, 3 (0 pts) 1, 3 (0 pts) –33 (0 pts) no roots 1 /1 point This item has been reviewed and is scheduled to be updated. All students will receive full credit for any response to the following. 2. Find the roots of the polynomial equation. 2x3 + 2x2 – 19x + 20 = 0 (1 point) (1 pt) , , –4 (1 pt) , , 4 (1 pt) , , –4 (1 pt) , , 4 1 /1 point 3. A cubic polynomial with rational coefficients has the roots 6 +and . Find one additional root. (1 point) (0 pts) –6 – (0 pts) 6 + (0 pts) –6 + (1 pt) 6 – 0 /1 point 4. Find a thirddegree polynomial equation with rational coefficients that has roots –4 and 6 + i. (1 point) (1 pt) x3 – 8x2 – 11x + 148 = 0 (0 pts) x3 – 8x2 – 12x + 37 = 0 (0 pts) x3 – 12x2 + 37x = 0 (0 pts) x3 – 8x2 – 11x = 0 1 /1 point 5. What does Descartes's Rule of Signs tell you about the real roots of the polynomial? –2x3 + 3x2 – 5x – 2 = 0 (1 point) (0 pts) There is one positive root and either 2 or 0 negative roots. (0 pts) There are either 2 or 0 positive roots and there are either 2 or 0 negative roots. (0 pts) There is one positive root and one negative root. (1 pt) There are either 2 or 0 positive roots and one negative root. 0 /1 point
 one year ago

jacksonjrrodneyBest ResponseYou've already chosen the best response.0
no i think its unit 6 lesson 5 it only has four questions
 one year ago

julliemyersBest ResponseYou've already chosen the best response.8
1. What is the solution of the equation? –9 = –7 (1 point) (1 pt) –6 (0 pts) 4 (0 pts) 14 (0 pts) –8 1 /1 point 2. What is the solution of the equation? – 5 = 59 (1 point) (1 pt) –5, 11 (0 pts) 5 (0 pts) 11 (0 pts) –11 1 /1 point 3. The area of a circular trampoline is 108.94 square feet. What is the radius of the trampoline? Round to the nearest hundredth. (1 point) (0 pts) 10.44 feet (1 pt) 5.89 feet (0 pts) 34.68 feet (0 pts) 3.32 feet 1 /1 point 4. What is the solution of the equation? 5x = (1 point) (0 pts) –1 (0 pts) 1 and (1 pt) 1 (0 pts) 1 /1 point 5. What is the solution of – = 5 ? (1 point) (0 pts) x = 0 (0 pts) x = 16 and x = 0 (1 pt) x = 16 (0 pts) x = 16 and x = 1 1 /1 point
 one year ago

jacksonjrrodneyBest ResponseYou've already chosen the best response.0
lol its the same questions as the questions listed
 one year ago

julliemyersBest ResponseYou've already chosen the best response.8
hhmmm idk, i cant find em
 one year ago

jacksonjrrodneyBest ResponseYou've already chosen the best response.0
its ok thank you
 one year ago
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