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]
9 months ago
15

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

Mathematics
1 answer:
adelina 88 [10]9 months 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
A gardener has 10 pounds of soil. He used 58 of the soil for his garden. How many pounds of soil did he use in his garden?
mars1129 [50]

Answer:

Step-by-step explanation:

58% of 10 pounds = 0.58 × 10 pounds = 5.8 pounds

8 0
3 years ago
Find the unit rate <br><br> $28 for 7 people
Vlad1618 [11]

Answer: 4 dollars per person .  that would be it .

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A company has 50 employees all working in the same building.
balandron [24]
Yes it did because 90% of fifty is 45 (50 divided by 10 x 5) and the graph shows that 46 employees left the building within a minute
6 0
2 years ago
5 . 9 × ____ = 73.16 which is the missing factor?
ladessa [460]

Answer:

12.4

Step-by-step explanation:

73.16/5.9

3 0
3 years ago
Read 2 more answers
Which shows the graph of the solution set of x + 2y &gt; 4?
nata0808 [166]

we have

x+2y > 4

The solution is the shaded area above the dotted line

therefore

The answer in the attached figure


7 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for x: 7x + 15 = 38
    11·2 answers
  • Which of the following objects cannot be bisected? •line <br> •line segment <br> •Ray<br> •angle
    14·1 answer
  • One body of water covers approximately 70 million square miles. another covers approximately 36 million square miles. what perce
    11·1 answer
  • This symbol ≥ means that one number is ____ ____ or equal to another number.
    13·2 answers
  • 4(x+1) - 7 = 3(x-1) + x
    14·1 answer
  • Fractions and properties of addition
    11·1 answer
  • Find the area of the trapezoid.
    13·1 answer
  • What’s 4+10? I’ll mark brainliest.
    6·2 answers
  • 1. Force is a push or a
    11·2 answers
  • D={xl x is a whole number}. E= {xl x is a perfect square &lt;100}. E {xl x is an even number between 10 and 20}
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!