factorise x^10+x^2+1 ( question is absolutely correct)
Answers
Answered by
4
Answer:
Let x² = y
Let x² = y y^5+y+1
y^5+y+1 = (y^5-y²)+(y²+y+1)
= y²(y³-1)+(y²+y+1)
= y²(y-1)(y²+y+1)(y²+y+1)
= (y³-y²+1)(y²+y+1)
Now, putting y = x² we get,
x^10+x²+1 = (x^6-x⁴+1)(x⁴+x²+1) (Ans)
(Mark as brainlist)
Answered by
1
Answer:
✍ Step-by-step explanation:
✏Let x² = y
Let x² = y y^5+y+1
y^5+y+1 = (y^5-y²)+(y²+y+1)
= y²(y³-1)+(y²+y+1)
= y²(y-1)(y²+y+1)(y²+y+1)
= (y³-y²+1)(y²+y+1)
✍ Now, putting y = x² we get,
☞ x^10+x²+1 = (x^6-x⁴+1)(x⁴+x²+1) (Ans)
Similar questions