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

15 points if u awnser this question thx
How does hydrogen peroxide get into cells
A bathtub is filling with water at a rate of 60 liters per minute. How many liters of water are in the bathtub after t minutes? Write your answer as an expressi
ASAP pls help me : (
Many common household substances may be classified as acids or bases. According to the pH scale, A) baking soda is a weak base while bleach is a strong base B)
When Earth is between the Moon and the Sun, how is the Moon seen?
What's a condom? Please make it detailed Best answer get's Brainliest but you have to answer quickly!
Two customers went to a post office to buy postcards and large envelopes. Each postcard costs the same amount, and each large envelope costs the same amount. Th
what is the importance of peace​
Solve x2 - 3x = 28 by factoring.