spencergosnell
spencergosnell spencergosnell
  • 02-05-2019
  • Mathematics
contestada

Solve the quadratic equation for x. What is one of the roots?

(x + 6)2 = 49

A) −13
B) −6
C) −7
D) −1

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 02-05-2019

Answer:

A) −13

Step-by-step explanation:

(x + 6)^2 = 49

Take the square root of each side

sqrt((x + 6)^2) = ±sqrt(49)

x+6 = ±7

Subtract 6 from each side

x+6-6 = -6  ±7

x =-6  ±7

Separating into 2 parts

x = -6+7          x = -6-7

x = 1               x = -13

Answer Link

Otras preguntas

what is the boundary between two rock layers called?
What is the area of the circle if XY=17in?
7. A pool cue ball moving at 2.1 m/s east collides in a straight line with the eight ball at rest. Find the velocity of the eight ball after the collision if
Comment l'homme invente-il le future
Reciprocal liking is adaptive because it lowers the risk of relationship rejection. Please select the best answer from the choices provided T F
How has nick from the great gatsby developed over time?
76X3 WHAT IS IT IM LAZY RN LOL
Please help! Which of the following violates the assumptions of the Hardy-Weinberg equilibrium a. the population under consideration has many individuals
In shaping a dog to “shake,” the command “shake” would be the ________. when the dog slightly moves its paw, this would be a(n ________.
Nucleic acids are one of the four major macromolecules. The main functions of nucleic acids are to