Question

(7x-2)(3x^2-4x-6)
Would someone kindly help me to compare answers? Thanks in advance.

Answer 1

depends on what u r trying to do

Answer 2

multiplying polynomials

Answer 3

Simplify

Answer 4

Distribute!

Answer 5

yes pol

Answer 6

i would probably seperate it into:
7x(3x^2-4x-6)-2(3x^2-4x-6)
and go from there

Answer 7

\[(7x-2)(3x^2 - 4x - 6)\]\[=3x^2(7x-2) - 4x(7x-2) - 6(7x-2)\]\[=...\]

Answer 8

\[(ax^2+bx+c)(dx^2+ex+f)=ax^2(dx^2+ex+f)+bx(dx^2+ex+f)+c(dx^2+ex+f)\]

Answer 9

Either way

Answer 10

i got 21x^3-34X^2+34x+12

Answer 11

\[=ax^2(dx^2)+ax^2(ex)+ax^2(f)+bx(dx^2)+bx(ex)+bx(f)+c(dx^2)+c(ex)+c(f)\]

Answer 12

you are correct.

Answer 13

thanks!

Answer 14

anyways we can do
\[7x(3x^2-4x-6)-2(3x^2-4x-6)\]
or
\[3x^2(7x-2)-4x(7x-2)-6(7x-2)\]

Answer 15

I disagree with your x term.

Answer 16

i used FOIL

Answer 17

Oh wait, no I don't

Answer 18

Oh wait, yes I do.

Answer 19

21x^3-34x^2-34x+12

Answer 20

yeah i missed the minus sign

Answer 21

\[=7x(3x^2)-7x(4x)-7x(6)-2(3x^2)-2(-4x)-2(-6)\]
\[=21x^3-28x^2-42x-6x^2+8x+12=21x^3-34x^2-34x+12\]