Question

number of feal roots of equation x^4+x^2-12=0​

Answer 1

Answer:

lllll

Step-by-step explanation:

Answer 2

x^4-x^2-12=0

(x^2-4)(x^2+3)=0

x^2-4=0

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

x-2=0

x=2 (real)

x+2=0

x=-2 (real)

x^2+3=0

x^2=-3 will yield imaginary roots

Answer 3

x^4-x^2-12=0

(x^2-4)(x^2+3)=0

x^2-4=0

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

x-2=0

x=2 (real)

x+2=0

x=-2 (real)

x^2+3=0

x^2=-3 will yield imaginary roots