Question

Factorise : x^4 + x^2 +1

Answer 1

Answer:

x⁴+x²+1

(x²)²+2x²+1-x²

(x²+1)²-x²

(x²+x+1)(x²-x+1)

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Answer 2

Gn eqn is x^4+ x²+1

This can be written as

x^4+2x²-x²+1

(x^4+2x²+1)-x²

(x²+1)²-x² (a+b)²=a²+2ab+b²

(a²-b²)=(a+b)(a-b)

(x²+x+1)(x²-x+1) is the final answer