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

What is the highest mountain on each continent?
Jim has gotten scores of 99 and 93 on his first two tests. what score must he get on his third test to keep an average of 90 or greater
name a metal that doesn't conduct electricity
round to the nearest hundredth 5.6192
if Xx8=y is the rule,and the value of x is 4, what is the value of y
How would you call in other words to scold or punish severely
Heat is released when H2 gas and O2 gas react to form H2O. Why? A. Breaking the H–H bond in H2 gas releases heat. B. Breaking the O–O bond in O2 gas releases he
write a system of equations and solvea class of 195 students went on a field trip. They took 7 vehicles,some cars and some buses. find the number of cars and nu
What's the other word stubborn; inflexible
what do I do to figure out this problem:3x+8=26+x