faith2288g faith2288g
  • 03-08-2020
  • Mathematics
contestada

Solve the equation by completing the square.

3x^2-12x=96

Respuesta :

adioabiola
adioabiola adioabiola
  • 08-08-2020

Answer:

x = 8

or

x = -4

Step-by-step explanation:

3x² - 12x = 96

Divide both sides by 3

x² - 4x = 32

Add 4 to both sides

x² - 4x + 4 = 32 + 4

(x - 2)² = 6²

Find the square root of both sides

√(x - 2)² = √6²

x - 2 = +/- 6

x - 2 = +6 or -6

x - 2=+6

x=6+2

x=8

x - 2=-6

x=-6+2

x=-4

x = 8

or

x = -4

Answer Link

Otras preguntas

Drag each factor to the correct location on the image. If p(1) = 3, p(-4) = 8, p(5) = 0, p(7) = 9, p(-10) = 1, and p(-12) = 0, P(x).
9x+5y=34 8x-2y=-2What are the values of x and y? Please explain the steps.​
a peace above all earthly dignities a still and quiet conscience explanation
"ai ngưng học hỏi người đó sẽ già nua,ai liên tục học hỏi người đó sẽ trẻ mãi Điều tuyệt vời nhất trên đời là giữ cho tâm trí mình mãi mãi trẻ trung". Bạn nghĩ
hi guys I need help me​
what short of event can inspire people​
find the range of the function f (x) = 2x + 5 for the domain 2,5,7
okay so basically i need to make a video on how technology is a two edged sword and i need to show its negative and positives? but i’d like for ideas as i can’t
Which decimal number is less than 1.56?
muddy water is an example of ______mixtures​