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
Drupady [299]
1 year ago
15

Solve 3x^2=-12x-15 using a quadratic equation with complex solutions

Mathematics
1 answer:
adelina 88 [10]1 year ago
5 0

The complex solution of a quadratic equation are (- 2 + i ) and

(- 2 - i ).

What is Quadratic equation?

An algebraic equation of the second degree is called a quadratic equation.

Given that;

A quadratic equation is;

3x² = -12x - 15

Now, The equation is written as;

3x² + 12x + 15 = 0

Take 3 common, we get;

3 (x² + 4x + 5) = 0

x² + 4x + 5 = 0

Factorize the equation by using Sridharacharya Formula;

x = - 4 ± √4² - 4*1*5 / 2*1

x = -4 ± √16 - 20 / 2

x = - 4 ± √-4 / 2

Since, √-1 = i

x = -4 ± 2i / 2                            

x = - 2 ± i

It gives two values of x as;

x = - 2 + i

And, x = - 2 - i

Hence, The complex solution of a quadratic equation are (- 2 + i ) and

(- 2 - i ).

Learn more about the quadratic equation visit:

brainly.com/question/24334139

#SPJ1

You might be interested in
Which expression is equivalent to 3x + 6y
Sedbober [7]

option a as 3 is outside of bracket it will be multiplied by what is in bracket sot the answer will equivalent to question

7 0
3 years ago
Read 2 more answers
The fastest roller coaster in the world is located in New Jersey. It travels 27 miles per hour.
Anon25 [30]

Answer: Kingda Ka is a launched roller coaster located at Six Flags Great Adventure in Jackson, New Jersey. Designed by Werner Stengel, Kingda Ka is an Accelerator Coaster model from Intamin that opened as the tallest and fastest roller coaster in the world on May 21, 2005.

Step-by-step explanation:

4 0
2 years ago
Does this graph show a function explain how you know
galina1969 [7]
No, the graph fails the vertical line test. In a function, each x value only has one y value. The y value can have more than one x value in a function
8 0
3 years ago
Read 2 more answers
A certain pickup truck gets 20mpg in the city and 28 mpg on the highway. If the driver drives 270 mi on 11 gal of gas, determine
Snezhnost [94]

Answer:

95 city and 175 highway miles.

Step-by-step explanation:

The driver gets 20 mpg in city, and 28 mpg on the highway.

An equation that could be written is

20x+28y=270

This equation accounts for the distance traveled.

x+y=11

This equotion accounts for how many gallons were driven.

Multiply the bottom equation by 20, so you can solve the set of equations.

20x+28y=270

20x+20y=220

subtract them

8y=50

y=6.25

now plug this back into x+y=11

x+6.25=11

x=4.75

Now 4.75×20=95 city miles and 6.25×28=175 highway miles.

8 0
3 years ago
A bacteria culture contains 1200 bacteria initially and doubles every hour.(a) find a function n that models the number of bacte
labwork [276]
<span>a) if the bacteria double every hour then it would 2^t(1200) where t is hours and 1200 is the amount in there to begin with. b) assuming the formula is correct it would be 2^24(1200). this becomes 20132659200 total in a day.</span>
6 0
3 years ago
Other questions:
  • Ujalakhan01! Please help me! ASAP ONLY UJALAKHAN01. What's (x-1)(x-1)?
    15·2 answers
  • What does 204 thousands equal
    12·1 answer
  • PLEASE HELP ASAP
    13·1 answer
  • The expression below can be used to find the surface area of a cube when given the length of an edge, a.
    8·2 answers
  • 95% of 7-year-old children are between_________inches and________ inches tall.
    12·2 answers
  • Which of the following is not a true statement about pi?
    11·1 answer
  • Help me please !!!!!
    13·1 answer
  • Which statements are true?
    5·1 answer
  • Given
    9·1 answer
  • A map of Atlanta has a scale of 1.5 inches to 0.75 miles.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!