Find all the real and complex solutions of the polynomial equation. Be sure to show ALL work (4 points):x3-2x2+9x-18=0

Answers

Answer 1

Answer:

2, 3i, -3i are the real and complex solutions of the polynomial equation.

What is Polynomial?

Polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and positive-integer powers of variables

The given polynomial is x³-2x²+9x-18

x³-2x²+9x-18=0

Take the common terms from first two terms

x²(x-2)+9(x-2)

(x²+9)(x-2)=0

(x²+3²)(x-2)=0

x-2=0

x=2

and x²+3²=0

x=3i and x=-3i

Hence, 2, 3i, -3i are the real and complex solutions of the polynomial equation.

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I can figure out how to break this down..

Answers

$( ((2)/(x) -1))/( ((1)/(x) -1))= (( (2-x)/(x)))/(( (1-x)/(x))) = (2-x)/(1-x)$ . Now the answers on your paper do not have this choice, but if you think about it, (2-x)=-1(x-2) and (1-x)=-1(x-1). This means that when you have (2-x)/(1-x), this also equals to (x-2)/(x-1), since the -1's cancel out. So, the answer is D.

I hope this was helpful!

How to explain the steps
you would take to put 36/10 as a decimal

Answers

36/10 is 36 divided by 10
So, you would divide 36 by 10 and as
36 = 36.000...
You would move the decimal place one place to the left.
3.6000... = 3.6

What is a counter example for, when it rains, it pours?

Answers

A counterexample is a statement that simply disproves another statement.

You could disprove "when it rains, it pours" by saying "sometimes when it rains, the rain is light."

A statement that disaproves another statement

Jonathan has a collection of 400 marbles. Blue marbles make up 17%, percent of his collection. How many blue marbles does Jonathan have?

Answers

17% of 400
percent means parts ou of 100
17%=17/100
'of' means mutiply

17/100 tiems 400=4*17=68

68 blue marbles

To find any percentage of something, just multiply the whole value by the percentage of whatever you're trying to find the value of.
17% converted to a decimal is 0.17. 400*0.17 = 68.
Jonathan has 68 blue marbles in his collection.
Hope that helped you!

Find the measure of the angle indicated.1
2
4
3
151°
6
8
7
The measure of angle 7 is

Answers

Answer:

Step-by-step explanation:

What is 16+(48/8)
and please do not give me a fraction i want a whole number for this answer, thank you

Answers

Answer: If the entry is a fraction only, leave the whole number field blank. This is the greater of the two entries. After determining which entry is greater, the compare fractions calculator will show its work and give a detailed explanation of each step it took to arrive at the answer.

Step-by-step explanation:

the answer 22

The answer is 22, because if you divide 48 by 8 you will get 6. ( You have to solve what’s in the brackets first!)
Then after you get 6, you will do 16+6 which equals to 22

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