Identify the remainder (-9x^4 + 7x^3 – x^2 – x) divided by (x - 1)

Ik the answer is -4 I just need to know how to show my work

When a formula is solved for a particular variable, several different equivalent forms may be possible. if we solved a=1/2bh for h, one possible correct answer is h=2a/b . which one of the following is not equivalent to this? a. h= 2(a/b) b. h= 2a(1/b) c. h= a/1/2b d. h= 1/2a/b

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Solve: 3x+y=6 4x-2y=18 show all work !