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 ( 19+ )
Otras preguntas
Being rejected by a peer group can negatively influence one's self-esteem.
Choose the definition of: Genetic A. Unit of heredity B. developed muscles C. unit of space D. Unit of measure
Which of the following is common for someone in stage two of HIV? A. abdominal pain and chronic pelvic pain B. diarrhea, fever, and fungal infections C. flu sym
What percent of 350 is 252
Money is useful to people because it is __________.Select one of the options below as your answer: a. a medium of exchange b. prestigious c. nice to look at
How many miles do you estimate it would be if you still the strip around the equator
Select the fraction that is equivalent to 0.0368. A.368 over 10,000 B.368 over 1,000 C.68 over 1,000 D. 10,000 over 368
Which expression is equivalent to - 3 x (4/- 5)? a. (- 3 x 4) / 5 b. - 3/5 x 4 c. - 3/- 5 x 4 d. (- 3 x 4) / (- 3 x (-5))
A synonym is a word that's A. similar in meaning. B. defined in a thesaurus. C. opposite in meaning. D. pronounced the same.
help please asap!!!!!!!!!!!!!!!!!!!
