Question

@imdestroyer69
(4w^2-2w+6)(w-7)
simplify

Answer 1

You need to multiply the two polynomials.
The first step is to multiply every term of the first polynomial by every term of the second polynomial.
Then you need to collect like terms.

Answer 2

4w^3-28w^2-2w^2+14w+6w-42=0 then
4w^3-30w^2+20w-42 now divide all terms by 2
2w^3-15w^2+10w-21

now you should go on with ruffini but actually I do not remember how to do it :)