Question icon
Grade 12th passAlgebra

the number of real &complex solutions of
x2-6|x|+8=0

Profile image of himanshu choudhary
8 Years agoGrade 12th pass
Answers icon

1 Answer

Profile image of Arun
8 Years ago
if we assume x > 0
then we get x2 – 6x + 8 =0
x = 4, x = 2
now if assume x
we get
x2 + 6 x + 8 = 0
x = – 4, x = – 2
 
hence all solutions are x = 2, 4, – 2, – 4