Which expression is equivalent to (x2 – 3x)(4x2 + 2x – 9)? a. x2(4x2 + 2x – 9) – 3x b. x2(4x2 + 2x – 9) – 3x(4x2 + 2x – 9) c. x2(4x2 + 2x – 9) + 3x(4x2 + 2x – 9) d. x2(4x2 + 2x) – 3x(2x – 9)

B.

Step-by-step explanation:

The distributivity establish that in order to multiply these two polynomials, first you have to multiply by every element in   and then multiply by every element in as well.

That is exactly what the option B. says, since

in the expresion is being multiplied  by every element in   and also is being multiplied by every element in  .

step-by-step explanation:

once you graph it hit 2nd (the blue button) and graph

that takes you to a table of coordinates

on the left is x coordinates and on the right is y coordinates and an empty box

(you may have to scroll up/down in order to get ( x, 0)