Question

x^4+x^2+1=?
factorise it....​

Answer 1

Answer:

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

Step-by-step explanation:

x^4-x^3+x^3+x^2-x^2+x^2+x-x+1

= x^2×(x^2-x+1)+x^3-x^2+x^2+x-x+1

= x^2×(x^2-x+1)+x×(x^2-x+1)+x^2-x+1

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

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