missdivavia
missdivavia
02-10-2017
Mathematics
contestada
[tex] \sqrt{2x} + 12 = x + 8 [/tex]
Respuesta :
LammettHash
LammettHash
02-10-2017
First note that [tex]x\ge0[/tex]; otherwise [tex]\sqrt{2x}[/tex] is undefined as long as we're only looking for real solutions.
We can write
[tex]\sqrt{2x}+12=x+8[/tex]
[tex]\sqrt{2x}=x-4[/tex]
[tex]2x=(x-4)^2[/tex]
[tex]2x=x^2-8x+16[/tex]
[tex]x^2-10x+16=0[/tex]
[tex](x-8)(x-2)=0[/tex]
[tex]\implies x=8,x=2[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 47+ )
Otras preguntas
What is the velocity of a electron whose wavelength is 100 pm?
How does Buck’s character grow in this excerpt? He realizes that without a human companion, he will go hungry. He becomes aware that his strength is enough to d
Sue ran 27 miles before she blistered her heel, and then she walked 1 additional mile. Her running speed was 18 times as fast as her walking speed. She was ru
How does Gregor's transformation affect him physically?
the human size is bigger in vein when compared with artery y
Christina can paint a chair in 6 hours, and Victoria can paint a chair in 4 hours. How many hours will it take to paint the chair when the two girls work togeth
(ANSWERED) Why were von Mayer, Joule, Kelvin, and von Helmholtz able to define conservation of energy in the same way despite using different approaches? A. Eac
Records are anything: papers, memos, presentations, reports, books, maps, e-mails, computer-readable material, photographs, or other documentary materials that
Given point B(-1,-5) is the midpoint of points A and C(4, -1). Find the coordinates of A.Thank you for everyone help me:)
Renaissance painters broke with medieval tradition. According to your text, which element was NOT widely used by Renaissance painters: a. human beings as indiv
