decodrafting decodrafting

18-12-2020
Mathematics

contestada

Solve x^2+4x=1 for x by completing the square

Respuesta :

jacobEwing jacobEwing

18-12-2020

Answer:

x is approximately equal to 0.34 and -4.34

Step-by-step explanation:

[tex]x^2 + 4x = 1\\x^2 + 4x + 4 = 5\\(x + 2)^2 = 5\\x + 2 = \sqrt{5} \\x = -2 + \sqrt{5}\\x \approx 0.34 \ and -4.34\\\\[/tex]

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

Assume that the distance from Earth to the moon is exactly 238,855 miles and that it took astronauts 75 hours to reach the moon in 1969. How far did the astrona

Evaluate (–27)(–512)(–56) .

Miss Jones has 18 boys and 27 girls in choir. She wants them to stand in equal rows. Only boys or girls will be in each row ( meaning no mixed rows). What is th

"list and define the life-supporting properties of water"""

Gaseous acetylene (c2h2) reacts with oxygen gas to form gaseous carbon dioxide and gaseous water. express your answer as a chemical equation. identify all of th

Help. For problem 135 ÷ 5, draw two different ways to break apart the array. Use the distributive property to write products for each different way. And help w

Which of the following statements about an apple falling from a tree is true? A) Its kinetic energy decreases and its potential energy increases. B) Its potent

by graphing the system of constraints find the values of x and y that maximize the object function.

A planet is orbiting a nearby star. Suppose that the star’s gravity increases over time. What effect will this increase most likely have on the planet’s path of

Why did many Southerners feel betrayed by President Zachary Taylor? 1) He favored California’s admission as a free state. 1) Once in office, he supported the co