Question

please answer x^4-5x^2+6=0​

Answer 1

Answer:

x^4 - 5x^2 + 6 = 0

x^4 - 3x^2 - 2x^2 + 6 = 0

x^2 ( x^2 - 3 ) - 2 ( x^2 - 3 ) = 0

( x^2 - 3 ) ( x^2 - 2 ) = 0

( x - √3 ) ( x + √3 ) ( x - √2 ) ( x + √2 ) = 0

• ( x - √3 ) = 0

x = √3

• ( x + √3 ) = 0

x = -√3

• ( x - √2 ) = 0

x = √2

• ( x + √2 ) = 0

x = -√2