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

Which sentence has a correctly placed participial phrase? A. The grocery store clerk, reserved for items on sale, placed dented cans on a shelf. B. The grocery
three of the following are features of absolutism. which is not
i need to create a story in spanish kind of like a kids book! i need topic ideas! the requirements are to use the preterite present and imperfect! Any topic id
how do you think the Mexican government felt about the idea of Manifest Destiny?
The oven tray is 600mm by 500mm. A cake tin is 25cm in diameter. How many cake tins can jenny fit on the oven tray at one time?
the ratio of men to women in a certain factory is 3 to 4. there are 210 men. How many workers are there?
Should children be restricted from caffeine use?why? is this a matter for government involvement? parental guidance? Explain
What are two conductive materials separated by an insulator,and used to store electric potential energy?
find the area and perimeter of an isosceles trapezoid with legs 25cm and bases 16cm and 30cm
what makes for good scientific data