aperfectangel12986 aperfectangel12986
  • 02-04-2020
  • Mathematics
contestada

slove 3x2-8=40 algebraically

Respuesta :

instaoceanclash
instaoceanclash instaoceanclash
  • 02-04-2020

Answer: x= -4, 4

Step-by-step explanation:

3x^2 - 8 = 40 add 8 to both sides

3x^2 = 48 divide both sides by 3

x^2 = 48/3 = 16 square root both sides

x = +/- 4

Answer Link

Otras preguntas

What is the amplitude of y=1/2 sin2x
how were north american colonies all similar in the 1700s?
what is a high structure part of a church which has 5 letters
you have a standard deck of 52 cards. you pick one card and then, with out putting the first card back, you pick a second card. what is the probability that bot
how were north american colonies all similar in the 1700s?
What are the functions of receptors in our body? Think of a situation where receptors do not work properly. What problems are likely to arise?
Simplify the expressions: cot 0 sec 0 A. Sin0 B. Csc0 C. Cos0 D. Cos* 0
What were the major causes of WWII? Please include at least 4 answers.
you have a standard deck of 52 cards. you pick one card and then, with out putting the first card back, you pick a second card. what is the probability that bot
in the number 13,407.036 there are two 3's. Explain how the values of the 3's are related.