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

What is the overall tone of “The Cub Pilot”?

Then, name an event that you think illustrates the changing perceptions of authority within the United States in the 1960s and 1970s and explain your reasoning.

The temperature of an oven went from 320° to 280°. What was the percent decrease in temperature? a. 14.3% b. 1.25% c. 12.5% d. 1.43%

write 3.141 in expanded notation

write 3.141 in expanded notation

I'm writing the whole thing consider 7x10 by the power of 3 write a pattern to find the expression

Lava is rock that has undergone a physical change and has liquefied. What is known about this change?

What is 48 divided by 2 (9+3) =?

What angle do the minute and hour hands of a clock make at 8:00

Help Please! You live in a state with a sales tax of 5%. You buy a car for $15,000. What is the sales tax? a. $50 b. $500 c. $750 d. $1,500