Question

For what value of 'k will (x - 1) be a factor of 4x^3 +kx^2 - 7x - 10?

Answer 1

k = 13

Explanation:

If (x-1) is a factor, then f(1) = 0

4*1 + k*1 - 7*1 - 10 = 0

4 + k - 7 - 10 = 0

k - 13 = 0

k = 13