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 ( 77+ )
Otras preguntas
A _____ key can be described as a minimal superkey, a superkey without any unnecessary attributes.
what is the slope of a line perpendicular to the line whose equation is 4x-2y =12
solve the inequality 17x is greater than 102
what is the relationship between the deer and the wolves on the island?
Unscramble: Béisbol partido pelota conseguir yo la para el de
True or false? the two cerebral hemispheres serve the exact same functions, just for opposite sides of the body.
Which statements describe a good hypothesis? Check all that apply. A good hypothesis is based on one’s personal opinion. A good hypothesis can be tested. A go
Early __________ mimicked the patterns and colors of quillwork.
Why is acid rain a social and political problem?
Find the perimeter of a polygon with sides 11 ft, 7 ft, 18 ft, 22 ft, 14 ft, and 23.5 ft.
