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
Otrada [13]
3 years ago
9

Please help asap solve x^4+5x^2+4=0

Mathematics
1 answer:
const2013 [10]3 years ago
7 0

Answer:

x=\pm i\text{ or }x=\pm2i

Step-by-step explanation:

So we have the equation:

x^4+5x^2+4=0

Let's let u be equal to x². So:

u^2+5u+4=0

Factor:

(u+1)(u+4)=0

Zero Product Property:

u+1=0\text{ or } u+4=0

Subtract:

u=-1\text{ or }u=-4

Replace:

x^2=-1\text{ or }x^2=-4

Take square root:

x=\pm\sqrt{-1}\text{ or }x=\pm\sqrt{-4

Simplify:

x=\pm i\text{ or }x=\pm2i

You might be interested in
Lucy's fish tank has 14 liters of water in it. She plans to add 5 liters per minute until the tank has at least 49 liters. What
Vikentia [17]

Answer:

Step-by-step explanation:

14 + 5t > = 49 (thats a greater then or equal sign)

5t > = 49 - 14

5t > = 35

t > = 35/5

t > = 7 <===

3 0
3 years ago
Find the square root of the following decimal numbers.​
Softa [21]

Answer:

Answer is in picture

Step-by-step explanation:

Hope it is helpful.......

5 0
2 years ago
Read 2 more answers
Need help with this problem some one please help !!
alexandr402 [8]
17.7 miles per gallon
8 0
3 years ago
Read 2 more answers
Finding the Area of Faces of a Rectangular Prism
Nikolay [14]

Answer:

It is hard which grade you are

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How do you simplify this math problem 5(1 + 3x) ?
lubasha [3.4K]

you need to distribute the 5. multiply each term in the parentheses by 5:

5(1) + 5(3x)

5 + 15x

5 0
3 years ago
Other questions:
  • A bicyclist covered 5/7 of his route and an additional 40 miles. He has yet to cover 118 miles less than 0.75 of his route. How
    8·1 answer
  • Pierre is rowing his kayak on a lake. He moves 4 miles in 18 minutes. At this rate, how far would he move in 30 minutes?
    15·1 answer
  • 1. We have 50 pounds of dog food to last for 10 days. Each day we use the same
    9·1 answer
  • Show me how to work the equation 30-f+8f=30​
    8·2 answers
  • 13,000 divided by 1,000
    9·1 answer
  • XYZ is a right-angled triangle. Calculate the length of XZ. Give your answer correct to 2 decimal places. PLEASE ANSWER MY QUEST
    14·1 answer
  • AYOOO HELPPPPP MATHHHH......? THANKKK UUUUU
    13·1 answer
  • What do 89/90 equal but not as a decimal or a percent as a fraction HELP ME
    9·1 answer
  • Which values are solutions to the inequality 6&lt; x+2?6
    6·2 answers
  • A CBS News/New York Times opinion poll asked 1,190 adults whether they would prefer balancing the federal budget over cutting ta
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!