dannylle dannylle

01-05-2020
Mathematics

contestada

What are the solutions of x2 = 8 - 5x?

Respuesta :

wolf1728 wolf1728

01-05-2020

Answer:

That can be re-written:

x^2 + 5x -8 = 0

We use the Quadratic Formula

a=1

b = 5

c = -8

x = [-b +- sq root (b^2 - 4ac) ] / 2a

x = [-5 +- sq root (25 - - 32)] / 2

x1 = [-5 + sq root (57)] / 2

x1 = 1.27491722

x2 = [-5 - sq root (57)] / 2

x2 = -6.2749172176

Step-by-step explanation:

Answer Link

Otras preguntas

Is 4/5 more than 1/2

The scale of a map is 1 in : 500 miles. City A is 650 miles from city C. How far is its distance on the map

The alloy stainless steel is used instead of pure iron for the ball of the pen. Give two reasons why.

which of the following is not a characteristic of Arthropods that has attributed to their diversity and success A. endoskeleton B. jointed appendages C. highly

One reason the skeletal system is important is because __________.

Which magazine can help the public to determine the best technology to buy? A. Google News B. Newsweek C. Consumer Reports D. Time

5/12-3/20 use the least common multiple as the denominator

The average of two numbers is 25 and their difference is 8. What are the numbers?

What was the green corn ceremony

what fraction is equivalent to -0.12