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 ( 55+ )
Otras preguntas
Forget the motor When im on the boat Think of the best time To buy a new coat What am I......?
A blue rope is 3 times the length as a red rope. A green rope is 5 times as log as the blue rope of the total length of all 3 ropes equals 508.25m what is the l
A blue rope is 3 times the length as a red rope. A green rope is 5 times as log as the blue rope of the total length of all 3 ropes equals 508.25m what is the l
Factor the expression. If the expression cannot be factored, say so.
A blue rope is 3 times the length as a red rope. A green rope is 5 times as log as the blue rope of the total length of all 3 ropes equals 508.25m what is the l
a lunch bill including tax, is divided among you and 5 friends. everyone pays less than $8.75. write and solve an inequality that describes the total amount of
What all the multiples of 81?
Thelma spent 1/6 of her weekly allowance on dog toys. 1/4 on a dog collar and 1/3 on dog food. What fraction of her weekly allowance is left
a lunch bill including tax, is divided among you and 5 friends. everyone pays less than $8.75. write and solve an inequality that describes the total amount of
Thelma spent 1/6 of her weekly allowance on dog toys. 1/4 on a dog collar and 1/3 on dog food. What fraction of her weekly allowance is left
