![EMQPWE](/avatars/28106.jpg)
EMQPWE
10.02.2020 •
Mathematics
How to write a polynomial function with the roots 1-2i and 1+2i
Solved
Show answers
More tips
- H Health and Medicine Simple and Effective: How to Get Rid of Cracked Heels...
- L Leisure and Entertainment What to Bring on a Hike? Essential Items to Pack for a Safe and Enjoyable Adventure...
- L Leisure and Entertainment Couchsurfing: A New Way to Travel...
- S Style and Beauty Autotanning: Harmful or Safe?...
- F Food and Cooking 10 Ideas for a Wedding Anniversary Gift...
- H Health and Medicine How to Reduce Sweating in the Heat and Beyond: Say Goodbye to Excessive Sweat...
- F Food and Cooking Do Aphrodisiacs Really Work? Separating Fact from Fiction...
- H Health and Medicine What to Eat to Lose Weight?...
- A Animals and plants How to Teach Your Parrot to Talk?...
- H Health and Medicine How to Improve Your Posture?...
Answers on questions: Mathematics
- M Mathematics Y = 130(0.45)x What is the growth factor, decay factor, or slope? What is the initial amount? Blank 1: Blank 2:...
- M Mathematics Can someone help me out...
- M Mathematics Find tanθ when 90 θ 180 and csc θ=5/4...
- M Mathematics A straight waterslide is 180 feet above the ground and is 215 feet long. What is the angle of depression to the bottom of the slide? please help me...
- M Mathematics Can someone please help me with math....
- M Mathematics Pls help me, if you get it right I will give you Brainlist!...
- M Mathematics Sebastian has a bag that contains orange chews, apple chews, and lime chews. He performs an experiment. Sebastian randomly removes a chew from the bag, records the...
- M Mathematics What is the expected value of the probability distribute of the discrete random variable x? A. 11.21 B. 71.52 C. 10.98 D. 7.72...
- M Mathematics Please help I might fail...
- M Mathematics 10. Given side length x below, construct, using only a compass and straightedge, a triangle with side lengths x, 3x, and 2x. 2 Х Please help it s on a test I have...
Ответ:
f(x) = x²- 2x +5
Step-by-step explanation:
- The difference of squares identity can be written:
a² - b² = ( a - b ) ( a + b )
Use this with a = ( x − 1 ) and b = 2 i as follows:
f(x) = ( x − 1 − 2i ) ( x − 1 + 2i )
= ( ( x − 1 ) − 2i ) ( ( x − 1 ) + 2i )
= ( x − 1 )² − ( 2i )²
= x² − 2x + 1 + 4
f(x) = x²- 2x +5
Any polynomial in x with these zeros will be a multiple (scalar or polynomial) of this f ( x )
Ответ:
Step-by-step explanation:
4x - 5 > 4
4x > 9
x > 2.25
Hence the integer values of x that satisfy are 3, 4, 5, 6, 7 and 8.