Question

factorise :
a^2+a+1/4​

Answer 1

Answer:

a^4 + a^2 + 1 = (a^2 + 2a^2 + 1) - a^2 = (a^2 + 1)^2 - (a)^2 = (a^2 + a + 1) (a^2 - a + 1 )