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  .

well the 1 and -1 are always after the 0 and the 0 is inthe middle. s thats what i would guess. but i dont know what a slope of 2 is sorry

step-by-step explanation:

the answer is  

a.

4,624π mm2

step-by-step explanation: