dondre54
25.06.2019 •
Mathematics
Find all solutions to the equation equation (x - 1)^2 = -4.
Solved
Show answers
More tips
- S Style and Beauty How to braid friendship bracelets?...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
- F Food and Cooking Delight for Gourmets: How to Prepare Liver Pate...
- C Computers and Internet How to Learn to Type Fast?...
- H Health and Medicine Angina: Causes, Symptoms, and Treatment...
- D Dating, Love, Relationships How to Overcome Jealousy: Tips and Tricks...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Start Your Own Business: Tips and Recommendations...
- F Food and Cooking How to Make Delicious Cabbage Pies: The Best Recipes!...
- F Food and Cooking Discover Delicious Recipes You Can Make with Ground Meat...
Answers on questions: Mathematics
- M Mathematics CAN SOMEBODY HELP PLEASE! I WOULD REALLY APPRECIATE IT...
- M Mathematics A fifth grade class at Lincoln sold more bags of popcorn than any other class. They ordered and sold 17 cases of popcorn. Each case had 242 bags. How many bags of popcorn...
- M Mathematics HELP please (part A)to the nearest tenth of a foot, how far away from student A is the balloon ?____feet(part B)to the nearest tenth of a foot, how far away from student...
- M Mathematics The perimeter of a rectangle is 12x - 5 5. If the length is 3x + 4 , find the width...
- M Mathematics Laurie is running in a 5,000-meter race. A kilometer equals about 0.625 mile. About how many miles long is the race?...
- M Mathematics What is the missing term? -4 -20% -16 4x20x2 ? 52 +4...
- M Mathematics The speed of a stream is 4 mph. A boat travels 10 miles upstream in the same time it takes to travel 18 miles downstream. What is the speed of the boat in still water?...
- M Mathematics (01.02 LC]Simplify -2 100 0-16 000 00 02 2...
- M Mathematics What is the answer? (answer quick please)(show steps)...
- M Mathematics At which point on do the graphs 2x = y + 5 and 6x + 2y = -5 intersect...
Ответ:
x = 1±2i
Step-by-step explanation:
(x - 1)^2 = -4.
Take the square root of each side
sqrt( (x - 1)^2) = sqrt(-4)
Sqrt(ab) = sqrt(a)sqrt(b)
We know the sqrt(4) = 2 and the sqrt(-1) = ±i
x-1 = ±2i
Add 1 to each side
x-1+1 = 1±2i
x = 1±2i
Ответ: