Question

Can anyone help me with solving this? >< It's not coming out right!

Answer 1

(3x + 5)(2x^3 - 4x^2 + x - 1) is the problem
Here's what I've been doing
(3x + 5)(2x^3 - 4x^2 + x - 1)
3x * x (like terms) = 3x^2
5* -1 = -5
2x^3 + 3x^2 - 4x^2 - 5
2x*3 -x^2 - 5

Is that right? :/

Answer 2

you're not adding here,
you're multiplying them

Answer 3

ohh, so I need to multiply each one?

Answer 4

Yes !

Answer 5

(3x + 5)(2x^3 - 4x^2 + x - 1)
--

Answer 6

first multiply the thing in 2nd bracket wid 3x

Answer 7

next wid 5,

Answer 8

ter that add them

Answer 9

*after

Answer 10

Okay! Sorry I didn't answer, I was working on it

Answer 11

good, take ur time :)

Answer 12

Okay is this right?
6x^4 - 2x^3 - 15x^2 - 5

Answer 13

hmm no

Answer 14

(3x + 5)(2x^3 - 4x^2 + x - 1)

3x(2x^3 - 4x^2 + x - 1) + 5(2x^3 - 4x^2 + x - 1)

Answer 15

(3x + 5)(2x^3 - 4x^2 + x - 1)

3x(2x^3 - 4x^2 + x - 1) + 5(2x^3 - 4x^2 + x - 1)

6x^4 -12x^3 + 3x^2 - 3x + 10x^3-20x^2+5x-5

6x^4 - 2x^3 - 17x^2 + 2x - 5

Answer 16

u must have flipped a sign somewhere... cancelling out x terms... check once :)

Answer 17

Ahh! I got it:DD Thank you!

Answer 18

nice :) np you wlcme :)