Question

Can anyone tell me if I did this correctly?

(6x3 - 13x + 13)(2x + 3)
6x3(2x + 3) - 13x(2x + 3) + 13(2x + 3)
(6x3)(2x) + (6x3)(3) - (13x)(2x) + (13x)(3) + (13)(2x) + (13)(3)
12x4 + 18x3 - 26x2 + 36x + 26x + 36
12x4 + 18x3 - 26x2 + 62x + 36

Answer 1

Sorry, the exponents did not copy through


(6x^3 - 13x + 13)(2x + 3)
6x^3(2x + 3) - 13x(2x + 3) + 13(2x + 3)
(6x^3)(2x) + (6x^3)(3) - (13x)(2x) + (13x)(3) + (13)(2x) + (13)(3)
12x^4 + 18x^3 - 26x^2 + 36x + 26x + 36
12x^4 + 18x^3 - 26x^2 + 62x + 36

Answer 2

Minor mistake 3*13=39 not 36

Answer 3

aaaaaahhh ty

Answer 4

brain is toast and still got a ways to go....lol

Answer 5

Also -13 * 3= is negative not positive 39

Answer 6

so that would be 65x instead of 62

Answer 7

ty

Answer 8

Not quite, you have mistakes regarding positive and negative.
12x^4+18x^3-26x^2-39x+26x+39
=12x^4+18x^3-26x^2-7x+39

Answer 9

trying again

(6x^3 - 13x + 13)(2x + 3)
6x^3(2x + 3) - 13x(2x + 3) + 13(2x + 3)
(6x^3)(2x) + (6x^3)(3) + (-13x)(2x) + (-13x)(3) + (13)(2x) + (13)(3)
12x^4 + 18x^3 - 26x^2 - 39x + 26x + 36
12x^4 + 18x^3 - 26x^2 - 13x + 36

Answer 10

where did you get the -7?

Answer 11

Your last term was multiplied incorrectly: 13*3=39 not 36

Answer 12

-7x was from -39x+26x
They are like terms so -39+26=-7

Answer 13

are you sure?

Answer 14

I thought it was -13

Answer 15

-13, my bad :P

Answer 16

lmao

Answer 17

final answer:
(6x^3 - 13x + 13)(2x + 3)
6x^3(2x + 3) - 13x(2x + 3) + 13(2x + 3)
(6x^3)(2x) + (6x^3)(3) + (-13x)(2x) + (-13x)(3) + (13)(2x) + (13)(3)
12x^4 + 18x^3 - 26x^2 - 39x + 26x + 39
12x^4 + 18x^3 - 26x^2 - 13x + 39

Answer 18

at least I was on the right track with this one.....lol

Answer 19

Yes, good job

Answer 20

ty