angeliaminervini716 angeliaminervini716
  • 01-04-2020
  • Mathematics
contestada

Solve.

x² + 4x + 4 = 18



​ x=−4±32‾√ ​
​ x=2±32‾√ ​
x=−2±32‾√
​ x=4±92‾√ ​

Respuesta :

lawrencecimora
lawrencecimora lawrencecimora
  • 01-04-2020

Answer:

x=−2+3√2

Step-by-step explanation:

x2+4x+4−18=18−18

x2+4x−14=0

For this equation: a=1, b=4, c=-14

1x2+4x+−14=0

x=

−b±√b2−4ac

2a

x=

−(4)±√(4)2−4(1)(−14)

2(1)

x=

−4±√72

2

x=−2+3√2 or x=−2−3√2

Answer Link
elmono111
elmono111 elmono111
  • 13-10-2020

Answer:

Step-by-step explanation:

Ver imagen elmono111
Answer Link

Otras preguntas

Match each creation myth feature to the correct story outline. Tiles The story involves creation from nothing. The story depicts a small amount of earth expandi
An earthworm that feeds on the remains of plants and animals is acting as a _____.
Help !!! Please !!!!!!
X<9.7 on a line graph
A(n) _____ key is very easy to use because it provides only two choices. answer monochotomous dichotomous observation
Teresa drove 936 miles in 13 hours. At the same rate, how many miles would she drive in 9 hours?
The student to teacher ratio at a high school is 17:3. If the total number of students and teachers is 740, how many of them must be students?
A movie theater charges $6.50 for matinee showings and $8.75 for evening showings. Yesterday the theater sold 378 tickets for a total revenue of $2,929.50. How
The law of supply states that A. as prices fall, so will supply, and as prices rise, so will supply. B. as prices rise, so will supply, and as prices fall, s
Where are all the pyramids located in the world?