Question

If (x+1) is a factor of the polynomial 3x^2-kx+5, then find the value of k.

Answer 1

Answer:

-8.

Step-by-step explanation:

• x + 1 = 0

       x = -1

put the value of x .

3 x ² - kx + 5 = 0

⇒ 3 + k + 5 = 0

∴ k = - 8.