Question

the value of k, if (x-1)। isa factor of 4X³+3X²-4X+k, is 1​

Answer 1

Answer:

x-1=0

x=1

f(x)=4x^3+3x^2-4x+k

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

1=4+3-4+k

1=3+k

1-3=k

k=-2.

Answer 2

Answer:

4x³+3x²-4x+k=0

put x=1 in the equation

4×(1)⁴+3×(1)²-4×1+k=0

4×1+3×1-4+k=0

4+3-4+k=0

3+k=0

k=-3