X-3 is a common factor of 3x^3-(a-b)x-8 and x^3-(a+b)x+30.Find the value of a and the value of b.

-8/3; 65/3

Step-by-step explanation:

If x-3 is a factor of a polynomial, it means that said polinomial evaluated at x=3 is 0. Let's apply it to both polynomials

At this point you have two condition linking a and b, we just have to write them in a slightly better looking way.

by adding and subtracting the two equations you can find the two values

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x