x4+5x2+9

Asked by nareshmihijam | 20th Jul, 2021, 09:09: PM

Expert Answer:

straight x to the power of 4 plus 5 straight x squared plus 9 equals 0
put space straight x squared equals straight t
straight t squared plus 5 straight t plus 9 equals 0
use space the space formula
straight t equals fraction numerator negative straight b plus-or-minus square root of straight b squared minus 4 ac end root over denominator 2 straight a end fraction
straight b squared minus 4 ac space equals space 25 space minus space 4 cross times 9 space equals negative 11
No space roots

Answered by Arun | 21st Jul, 2021, 10:01: AM