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

in dna, adenine pairs with _______, and in rna it pairs with _______.
How do you name a segment? How do you name a line?
Lauren jogs at a rate of 2 miles every 2/5 hour what is her unit rate ? A . 0. 4 mi/h B . 2 mi/h C . 5 mi/h D . 10 mi/h
Which polynomial expression represents the area of the outermost square tile, shown below? A. x2+6x − 6 B. x2 − 9x + 6 C. x2 + 6x − 9 D. x2 − 6x + 9
The distance from Town A to Town B on a map is 6 inches. The actual distance from Town B to Town C is 12 miles. The scale on the map is 1 in: 4 mi. Determine if
What are the muscles called when we don't have to tell them what to do?
Which is the best definition of literal language?   A. words used to describe stories, poems, and other literary works   B. words used imaginatively in f
If the original number is 15 and the new number is 5, what is the percent decrease?
what is 1 divided by 7/4
You need to write an essay about hot air ballooning. You know you've seen a good book on this topic, but you can't remember the name of the book or the name of