Question

1.) Find all zeros of the function f(x)=6x3−7x2−14x+8. and 2.) Given y=3x5−x4+9x3−3x2−12x+4, and that 2i is a zero, write y in factored form (as a product of linear factors). Be sure to write the full equation

63

likes
314 views

Answer to a math question 1.) Find all zeros of the function f(x)=6x3−7x2−14x+8. and 2.) Given y=3x5−x4+9x3−3x2−12x+4, and that 2i is a zero, write y in factored form (as a product of linear factors). Be sure to write the full equation

Expert avatar
Jon
4.6
110 Answers
1. To find the zeros of f(x)=6x^3−7x^2−14x+8, apply the Rational Root Theorem and synthetic division:
- Test potential rational roots: \pm 1, \pm 2, \pm 4, \pm 8, \pm \frac{1}{2}, \pm \frac{1}{3}, \pm \frac{2}{3}, \pm \frac{4}{3}, \pm \frac{8}{3}.
- Using synthetic division, we find that f\left(\frac{-2}{3}\right) = 0 and f(2) = 0.
- Further factorization shows:
(x + \frac{2}{3})(x - 2)(6x + 4) = 0
- Simplify to find the zeros:
x = -\frac{2}{3}, 2

Answer: x = -\frac{2}{3}, 2

2. To write y=3x^5−x^4+9x^3−3x^2−12x+4 in factored form given that 2i is a zero:
- Since 2i is a zero, -2i is also a zero due to complex conjugates appearing together.
- Using synthetic division, check additional real roots.
- Suppose 1, 2, -1 are real zeros (use synthetic division to verify).
- Factor together:
3(x - 2i)(x + 2i)(x - 1)(x - 2)(x + 1)

Answer: y = 3(x - 2i)(x + 2i)(x - 1)(x - 2)(x + 1)

Frequently asked questions (FAQs)
Math Question: What is the equation of a parabola with a vertex at (2, 3) that opens downwards?
+
Math Question: Solve the inequality system 3x + 2y ≤ 10 and x - y ≥ 5 graphically.
+
What is the derivative of f(x) = 5x^2 - 3x + 2 using the basic rules of derivatives?
+
New questions in Mathematics
Find 2 numbers that the sum of 1/3 of the first plus 1/5 of the second will be equal to 13 and that if you multiply the first by 5 and the second by 7 you get 247 as the sum of the two products with replacement solution
2x-y=5 x-y=4
4x-3y=5;x+2y=4
Margin of error E=0.30 populations standard deviation =2.5. Population means with 95% confidence. What I the required sample size (round up to the whole number)
"If three wolves catch three rabbits in three hours, how many wolves would it take to catch a hundred rabbits in a hundred hours?" The answer is the number of response units.
A study reports the following final notation: F (3, 32) = 9.50, p < .05. How many total participants were involved in this study? Group of answer choices 34 32 36
Suppose you have a sample of 100 values from a population with mean mu = 500 and standard deviation sigma = 80. Given that P(z < −1.25) = 0.10565 and P(z < 1.25) = 0.89435, the probability that the sample mean is in the interval (490, 510) is: A)78.87% B)89.44% C)10.57% D)68.27%
Determine the reduced equation of the straight line that is perpendicular to the straight line r: y=4x-10 and passes through the origin of the Cartesian plane
Determine the increase of the function y=4x−5 when the argument changes from x1=2 to x2=3
The sick-leave time of employees in a firm in a month is normally with a mean of 100 hours and a standard deviation of 20 hours. Find the probability that the sick-leave time of an employee in a month exceeds 130 hours.
Quadratic equation 2X = 15/X + 7
A function is considered exponential when it has a base with positive values greater than zero and different from one, where the exponent is an unknown. An important characteristic of exponential functions is that they show rapid growth or decay as an independent variable increases or decreases. Given the function 25^(x+3)=125, it is calculated that x has the value of
Find the center coordinates and radius of a circle for an equation written as: 3x2 + 3y2 - 6y = —12× + 24
Solve for B write your answer as a fraction or as a whole number. B-1/7=4
Arturo had hospitalization expenses of $8,300. Your policy for medical expenses Seniors have a deductible of $500 and expenses are paid at a 20% coinsurance. These are the first expenses ever this year, how much will Arturo have to pay in your bill for hospitalization expenses?
9n + 7(-8 + 4k) use k=2 and n=3
How many digits are there in Hindu-Arabic form of numeral 26 × 1011
5a-3.(a-7)=-3
12[4 + (8 + 7) + 5]
5 1/9 + 2 2/3