shon9416 shon9416
  • 10-07-2019
  • Mathematics
contestada

Which of the following are solutions to the equation below. Check all that apply

Which of the following are solutions to the equation below Check all that apply class=

Respuesta :

smmwaite
smmwaite smmwaite
  • 10-07-2019

Answer:

B. -2√2 - 5

C. 2√2 - 5

Step-by-step explanation:

The left side of the equation is already a perfect square.

Let us factorize it first.

x²+10x+25=8

x(x+5)+x(x+5)=8

(x+5)²=8

Let us take the square roots of both sides.

x+5=±√8

But √8=±2√2

Therefore in surd form, the two solutions become:

x+5=2√2 or x+5=-2√2

Therefore x= 2√2-5 and -2√2+-5

Answer Link

Otras preguntas

3 events that happens in 1821
4. Which of the following enzymes serve as catalysts in metabolism? I. amylase II. lactase III. pepsin IV. polymerase
tom draws 7 bugs. gina drwas 7 bugs. how many bugs did they draw in all
Which equation has an a-value of 1, a b-value of –3, and a c-value of –5?
women suffrage in Arizona was granted by which reform measure
Which of the following landforms is located between the western ranges, contains rich natural resources, and has fertile soil? a. the great plains b. death va
48 is 60% of what number
The polynomial 24x3 − 54x2 + 44x − 99 is factored by grouping. 24x3 − 54x2 + 44x − 99 24x3 + 44x − 54x2 − 99 4x(____) − 9(____) What is the common factor t
4/ (4/ 9) = (4/ 4)/ 9 true or false
HELP ME PLEASE!!!!!!! I NEED AN ANSWER ASAP NOW Which of the following expressions is equivalent to the expression 5(4n - 11) - 3n + 20? 17n + 9 17n - 35 23n +