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

Which number is 164,502,423 decreased by 100,000?
If water and oil are combined in a container, the resulting liquid is a(n) A. suspension. B. emulsion. C. mixture. D. solution.
S= 2( lw + lh + wh) Solve for w Please show your work
Word problems with rational numbers
Simplify 6 - (-2) - 3(-5). -11 -7 19 23
What occupations did the jumanoes have?
change the fraction 1/5 to a percent
According to the passage, how did people regard Emperor Kangxi? a. with awe c. with love b. with hatred d. with indifference
Which of the following is an effective tip for participating in a group discussion? a. Be respectful to others in disagreements. b. Wait until after the group h
What is the following number in decimal form? 8.61 × 10 –8 a. 0.000000861 b. 0.0000000861 c. 8,610,000 d. 861,000,000