Factorise the m to the power 4 + m to the power 2 + 1
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Answer:
m^4 +m^2 +1 = [m^2 + m +1] [m^2 - m +1]
Step-by-step explanation:
Let m^4 +m^2 +1 = [m^2 +km +1] [m^2 +hm +1]
now m^3 term h+k = 0 then h = - k
m^2 term 1+1+hk = 1
hk = -1
-kk = -1
k = 1 or -1
so k = -1 or 1
m^4 +m^2 +1 = [m^2 +m +1] [m^2 - m +1]
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