chronic110 chronic110

23-09-2020
Mathematics

contestada

The solutions to (x + 4) ^2- 2 = 7 are

Respuesta :

darrenurkes darrenurkes

24-09-2020

Answer:

x = -1, -7

Step-by-step explanation:

[tex](x+4)^2[/tex] -2 = 7

[tex](x+4)^2[/tex] -9 = 0 (Taking 7 to the other side)

[tex](x+4)^2[/tex] - [tex]3^2[/tex] = 0

Now use the difference of two squares rule

[((x+4)+3).((x+4)-3)] = 0

[(x+7).(x+1)] = 0

Now solve for x

x = -1, -7

Answer Link

Otras preguntas

Let sin A= -3/5 with 270°< A< 360°. Find the following. sin A/2

This is the notebook of NamThe tool of the mason is heavyShe prepared the outfit of her childrenThe coat of the boy was tornMr. Van is the friend of Mr. DongThe

Why Don't Birds Get Electrocuted When They Land on Electric Wires?

what is internet?what is online?

What is the difference of these fractions? use the number line and equivalent fractions to help find the answer -1 1/4+1/2

Find the length of FT

is the process of modifying something to make it fit certain criteria.

Parents send their children to school to

Rewerite the sentence " Joan of Arc was tied to steak and burnt.

Which of the following equations represents a linear function? Question 8 options: y =6x x3 – y = –2 2x – 4y = 6 y =4x−−√