02-10-2020
Mathematics

contestada

Solve the quadratic equation x(x+1)=8-x. Write your answer as a whole number or fraction

Respuesta :

mustapha16 mustapha16

02-10-2020

Answer:

x=-4 or 2

Step-by-step explanation:

x(x+1)=8-x

x^2+x=8-x

x^2+2x-8=0

x^2+4x-2x-8=0

x(x+4)-2(x+4)

(x-2)(x+4)=0

x-2=0

x=2

or

x+4=0

x=-4

Answer Link

Otras preguntas

How many atoms are in 0.750 moles of zinc?

If 8 men can chop down 28 trees in one day, how many trees can 20 men chop down in one day?

The value square root of 53 of lies between which two consecutive integers?

What is the mean of 87, 93, 86, 90, and 84?

Which of the kingdoms has the smallest number of known species

After what happened on April 19 can war between the colonies and Great Britain be avoided?

Natalie earns $2.50 for each cd she sells and $3.50 for each dvd she sells. Natalie sold 45 dvds last year. She earned a total of $780 last year selling cds a

After what happened on April 19 can war between the colonies and Great Britain be avoided?

Write a system of equations with a solution (4,–3)

How many atoms are in 0.750 moles of zinc?