Question

if x³-10x²-53xplus42plusk if (x-4) is a factor

Answer 1

I hope answer is helpful for you

Answer 2

f(x) = x - 4
x=4
x3-10x2-53x+42
4*4*4 - 10*4*4 - 53*4 + 42
64 - 160 - 212 + 42
= - 266...