Question:
Factorize:
$a^{3}+a-3 a^{2}-3$
Solution:
We have:
$a^{3}+a-3 a^{2}-3=\left(a^{3}-3 a^{2}\right)+(a-3)$
$=a^{2}(a-3)+1(a-3)$
$=(a-3)\left(a^{2}+1\right)$
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.