Question

find the value of k if x-2 is the factor of 4x³+3x²-4x+k​

Answer 1

If x-2 is a factor of the equation then

• x-2=0
• x= -2

Now putting the value of x in the equation

• 4(-2*-2*-2) + 3(-2*-2) - 4*-2 + k =0
• -32 + 12 -8 + k =0
• -28+k=0
• k=28