Q

# Check whether the first polynomial is a factor of the second polynomial by dividing the second polynomial by the first polynomial: t square minus 3,

Q2 (1)   Check whether the first polynomial is a factor of the second polynomial by dividing the
second polynomial by the first polynomial:

$t^2 - 3, 2t^4 + 3t^3 - 2t^2 - 9t - 12$

After dividing we got the remainder as zero. So $t^2 - 3$ is a factor of $2t^4 + 3t^3 - 2t^2 - 9t - 12$