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

Alana and Petra go to a used book sale, where every book is the same price. Alana buys 4 books and Petra buys 2 books. They run into their friend Angus, who r
In what ways has china influenced other cultures in the region?
Identify the underlying force behind all forms of mass movement
Choose the answer that best completes the sentence. ¿Dónde __________ Manolo (mirar) la televisión? miro mira miras miran
Sebastian's pool is filled with 270 cubic meters of water. The base of the pool is 15m long and 9m wide.What is the height of the water in Sebastian's pool?
A game has 3 possible outcomes: The first outcome has the probability of 1/6. The result is winning $12. The second outcome has the probability of 1/3. The res
what is the value of w, when the equation is 5w + 9z = 2z + 3w
Help I’m stuck would be helpful
A machine fills cans of soda which are labeled 12 ounces, according to a normal distribution with mean 12.1 ounces and standard deviation 0.1 ounces. if you buy
Which body parts don’t fossilize because animals tend to consume them?