Question 634321
multiply (x + 6 )(x2 + 3x – 4)
first, multiply by x
then multiply by 6
then combine like terms
..
(x + 6 )(x^2 + 3x – 4
=x^3+3x^2-4x+6x^2+18x-24
=x^3+9x^2+14x-24