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

A 7-letter word for freedom
Which of the following is NOT a requirement for voting? A. must be at least 18 years by election day B. must be a U.S. citizen C. must vote in the place where
What is 39 squared? A. 39 B. 1,482 C. 1,521 D. 78
n. f .39 W I - '5 Ln Xe ,3; / , ya 9 x+ his w » . ; é v Q ' 7 22:3 , - - ' ‘ ' .91. I ' ~ I r
The movement of water from ocean to the atmosphere to the land and back to the ocean is called a. water evaporation. c. water precipitation. b. water condensati
An individual can reduce the amount of risk associated with an investment program by using: a. an investment timer. b. asset allocation. c. a portfolio picke
Either Mark or his students _______ on the ferry boat. 10. If you want to use the present tense, which word would best fill the blank?
How many dependent variables can be tested during any single experiment?
What are two non living things, cheetahs interact with?
The physical features of Eastern Europe were shaped by a time of lower temperatures when much of the land was covered in snow and ice known as a(n) A. stone age