Question

find the value of k, if x-1 is a factor of 4x³+3x²-4+k​

Answer 1

Answer:

x-1 = 0

x = 1

putting the value of x in the equation

4*1 + 3*1 - 4 + k = 0

4+3-4+k = 0

3+k = 0

k = -3

Answer 2

Step-by-step explanation:

x-1 = 0

x = 1

p(x) = 0

p(x) = 4x^3 + 3x^2 - 4 + k = 0

4(1)^3 + 3(1)^2 - 4 + k = 0

4(1) + 3(1) - 4 + k = 0

4 + 3 - 4 + k = 0

3 + k = 0

k = -3