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 midpoint between 0.13 and 0.14
theres 8 kids on the bus and 5 are boys whats the fraction
if a circles circumference is 15 inches, what is its radius?leave the symbol "pi" in your answer.
Define color and explain how color is used in the above picture titled Self-portrait with Flowers by Frida Kahlo. See attachment.
expand and simplify 3(x+2)+2(x-1)
28 girls and 32 boys volunteer to plant trees at a school. the principal divides the girls and boys into identical groups that have girls and boys in each group
reason why peer pressure may lead to unsafe sexual behaviour
Which element is used in light bulbs as a filament
slope of the line that passes through (1, 4) and (1, −3)?
all the names that apply to the number -1.5