Question

eq.(x^2+1)^2-x^2=0 has how many real roots​

Answer 1

Answer:

It will have 4 roots. After simplification.

Step-by-step explanation:

(x^2)^2+2(x^2)(1)+(1)^2-x^2

I.e. x^4+2x^2+1-x^2

x^4+x^2+1