SOLUTION: x^4 + 3 √x = 10 Thanks so much in advance:)

Algebra ->  Radicals -> SOLUTION: x^4 + 3 √x = 10 Thanks so much in advance:)      Log On


   

Question 813842: x^4 + 3 √x = 10
Thanks so much in advance:)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

 x%5E4+%2B+3root%282%2Cx%29+=+10   Let X = x^2

     X^2 + 3X = 10

     X^2 + 3X-10 = 0

  (X+5)(X-2) = 0

  (X+5)= 0 ,  X = -5   | X = x^2 0r  x = sqrt%28X%29 ,  x = i%2Asqrt%285%29

  (X-2)= 0 ,  X = 2   ,  x = sqrt%282%29