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

need help with this question ASAP
How did a warming climate 12,000 to 10 thousand years ago impact the paleo- Indians living in the Americas at the time
What is the purpose of analyzing a play?
Find the zeros of the polynomial function f(x)=x^3-2x^2-8x
if you can't type it out can you just explain how to do it?
We need a step by step answer to 2(3 d-1)
Which of the following can be construed after a model verifies the results of multiple experiments?a.) a theory that does not explain what happens.b.) a law tha
1/4 divided by 1/3 .....................,
Emily has been waiting for a promotion to a management position for almost five years. She notices that men fill most of the higher-level jobs in her company. S
Marisa puts a cup of hot chocolate in her microwave oven. She knows that the final temperature of the hot chocolate will be a function of the number of seconds