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

Kevin is riding his bike on a 10 1/8 mile bike path. He has covered the first 5 3/4 miles already. How many miles does he have left to ride
What is the best description of health protection?
jade ran 6 times around her neighborhood to complete a total of 1 mile how many times will she need to run to complete 5/6 of mile
Amoeba use _________ to move and ingest prey. A) cilia B) flagella C) parapodia D) pseudopods
11 times 12 equals 10 plus 1 times 10 + 2 what property does this demonstrates
Is the equations of quadratic number pattern will always have real roots
what is the theory that species evolve quickly over a short period of times
_____ is a limiting factor in many ecosystems. A) air B) sunlight C) shelter D) water
both logistic and exponential growth charts measure the of any given population
What type of organism is a pillbug and where do they live?