AnaBelle111
AnaBelle111
05-09-2017
Mathematics
contestada
Please find the value(s) of x.
Respuesta :
liemonder
liemonder
05-09-2017
-2x^2+50x+40=0
-2*(x^2-25x-20)=0
x^2-25x-20=0
complete square:
x^2-25x-20+156.25^2=0+156.25
x^2-25x+156.25^2=20+156.25
(x-12.5)^2=176.25
x-12.5=+/-sqrt(176.5)
x=12.5+/-sqrt(176.5)
Answer Link
VER TODAS LAS RESPUESTAS ( 15+ )
Otras preguntas
Drake received 80 points on a project for school. He can make changes and receive one-tenth of the missing points back. He can do this 10 times. Create the form
Why did the Spanish explore and colonize New Mexico and Florida in the 1600s?
Do I capitalize zebra in this sentence? Meet Timmy the zebra.
9. What is the setting of "The Little Match Girl"? A. A wintry city street B. A place in the matchseller's imagination C. The matchseller's attic home D. The ma
Milwaukee is 121 mi (air miles) due west of Grand Rapids. Maria drives 255 mi in 4.75 h from Grand Rapids to Milwaukee around Lake Michigan. Find her average dr
Your home insurance policy has a $500 deductible. If a small fire causes $1200 damage to your home, what amount of the claim would the insurance company pay? A.
Drake received 80 points on a project for school. He can make changes and receive one-tenth of the missing points back. He can do this 10 times. Create the form
The tensions leading up to the Civil War were present at the beginning of the nineteenth century. (Points : 2) True False
the senate refusing to ratify a treaty, the president vetoing a law, and the senate rejecting the nomination of a Supreme Court justice are all examples if
the senate refusing to ratify a treaty, the president vetoing a law, and the senate rejecting the nomination of a Supreme Court justice are all examples if