1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
snow_lady [41]
3 years ago
15

Find the zeros (roots) of the following equations. f(x) = 2x5 - 9x4 + 12x3 - 12x2 + 10x - 3 = 0

Mathematics
1 answer:
Talja [164]3 years ago
8 0
Hi,
f(1)=2*1^5-9*1^4+12*1^3-12*1^2+10*1-3\\
=2-9+12-12+10-3\\
=0\\

f(x)=(x-1)(2x^4-7x^3+5x^2-7x+3)\\


g(x)=2x^4-7x^3+5x^2-7x+3\\

g(3)=2*3^4-7*3^3+5*3^2-7*3+3\\
=162-189+45-21+3\\
=0\\

g(x)=(x-3)(2x^3-x^2+2x-1)\\

h(x)=2x^3-x^2+2x-1\\

h( \dfrac{1}{2} )=2* \dfrac{1}{8} - \dfrac{1} {4}+1-1\\
=0\\

h(x)=(2x-1)(x^2+1)\\


f(x)=(x-1)(x-3)(2x-1)(x+i)(x-i)\\



Roots are 1,3,0.5,i,-i.

You might be interested in
Mandy is setting up for a reception. For the number of seats needed, she knows she can use either 8 seats at each table with non
Alex17521 [72]

Answer:

This is an LCD question. The answer is 40.

4 0
3 years ago
Combining like terms with rational coefficients <br> 7/8m+9/10-2m-3/5
nikklg [1K]

Answer:

Ah yes, one of my favorite topics.

Step 1: Which ever fraction comes first, you will solve it first. For this question, focus on doing \frac{7}{8}m-2m first. Afterwards, do \frac{9}{10}-\frac{3}{5}

Step 2: First one equals to 1.125. Next, find the LCD (lowest common dominator, which is 10). \frac{9}{10} -\frac{6}{10}=\frac{3}{10}

Step 3: 1.125+3/10

7 0
3 years ago
there are 72 new houses being built in a neighborhood. Last month, 1/3 of them were sold. This month, 5/8 of the remaining house
Nataly_w [17]

Answer:

15 houses

Step-by-step explanation:

1/3 * 72 = 24

5/8 * 24 = 15

7 0
2 years ago
Please help, as soon as possible...
vodomira [7]

Answer:

1. a) Square

2. c) Rectangle

Step-by-step explanation:

1. If you cut this rectangular prism in way to be PERPENDICULAR to the base, that means you're cutting it straight down, from the top to the bottom, in a vertical line.  The cross-section obtained will be just like an end of the prism, which in this case is a square.  Because it's a regular rectangular prism, no matter where you cut it, as long as it's vertical, perpendicular to the base, you'll get a square due to this particular form.  Technically, the answer could also be a rectangle, since a square is a rectangle.

2.  you cut this rectangular prism in way to be PARALLEL to the base, that means you're cutting it straight, from the front to the back, in an horizontal line. The cross-section obtained will be just like an top of the prism, which in this case is a rectangle.  Because it's a regular rectangular prism, no matter where you cut it, as long as it's an horizontal line, parallel to the base, you'll get a rectangle due to this particular form.

6 0
3 years ago
A spinner has 8 sections. 2 are grey 6 are blue. The spinner is spun twice what is the probability that the first lands on grey
sweet [91]

Answe

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • (X-5)(x+6) greater than or equal to 0
    13·1 answer
  • Her coins have a total value of $9.50. She has a total of 50 coins. Write systems of equations can be used to find the number of
    10·1 answer
  • Which theorem can be used to prove triangles are congruent?
    11·2 answers
  • Revolve the figure shown about the y-axis completely to sweep out a solid of revolution.
    14·2 answers
  • WILL GIVE BRAINLEST TO CORRECT ANSWER A researcher is dividing a sample with a mass of 9.2 x 10-3 grams into smaller samples wit
    6·1 answer
  • 4. Luke is also making pizzas. He started with 4 cups of pepperoni. He has used 2/3 of his pepperoni. How many cups of pepperoni
    6·1 answer
  • 2. Which is NOT in the fact family for<br> 3, 4, and 12?<br> 6. N<br> fo<br> ir
    10·1 answer
  • Convert −360° to radian measure in terms of π.
    7·1 answer
  • Find a polynomial of the specified degree that has the given zeros <br> Degree3; zeros --2, 2, 4
    8·1 answer
  • What is probability scale to the sea will disapper​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!