Answer:
−3x3−16x2−14x+8
Explanation:
first times the first x in parentheses by everything in the second
(x)(-3x^2) and (x)(-4x) and (x)(2)
-3x^3-4x^2+2x
Then times the 4 by the other variables in the parentheses
(4)(-3x^2) and (4)(-4x) and (4)(2)
-12x^2-16x+8
now the whole equation:
-3x^3-4x^2+2x -12x^2-16x+8
now you must simplify or add like terms
-3x^3-16x^2-14x+8 is your answer, which is the first one.