britelamp40b1x britelamp40b1x

23-04-2018
Mathematics

contestada

Solve the quadratic equation. (x + 6)2 = 49
A) x = -7 or 1
B) x = 13 or -1
C) x = 1 or -13
D) x = ± 7

Respuesta :

MrsStrong MrsStrong

10-01-2019

Answer:

C

Step-by-step explanation:

To solve, use inverse operations:

[tex](x+6)^2=49\\\sqrt{(x+6)^2} =\sqrt{49} \\x+6=+/-7[/tex]

Now we solve for both +/- 7.

x+6=7

x=1

x+6=-7

x=-13

Answer Link

Otras preguntas

In order to prevent the researcher's expectations from influencing study participants, a(an) _____ design is used

Write a true conditional statement about yourself. Then write the converse of your statement in if-then form. Is the converse true?

the area of a rectangular field is 6603 meter squared. if the width of the field is 71 m what is it’s length

Which is the area of a circle with circumference of 15.7 units?( Use 3.14 for )

What form of democracy did ancient athens have?

Which identifies a way many enslaved workers rebelled

You are going running. For every mile you run, you burn 100 calories. In the equation below, m represents the number of miles you run, and c represents the numb

The point (4,-3) lies on the circle centre (-2,5). Find the radius of the circle

What happens to the reaction rate as the supply of toothpicks runs out?

what's 4/5 + 6/5 equals