Question

factorise x^4 +x^2+1​

Answer 1

Step-by-step explanation:

x 4 +x 2 +1

=(x ^2 ) ^2 +2(x ^2 ) ( 1)+1 ^2 −x ^2

=(x ^2 +1) ^2 −x ^2

=(x ^2 +1−x)(x^ 2+1+x)