Question

x ki power 4 minus 10 X square + 9 is equal to zero​

Answer 1

Answer:

Hope you are expecting this:-

Step-by-step explanation:

x^4- 10x^2 +9 = 0

x^4 -9x^2 -x^2 +9 = 0

x^2 (x^2 - 9) - 1(x^2 - 9)

(x^2 - 9) (x^2-1)

x^2 = 9  ;  x^2 = 1

x = ± 3   ;  x = ±1