Question

Ifx+5 is a factor of x square + kx + 60 then the value of k

Answer 1

Answer:

x+5 is a factor

then by remainder factor theorem

f(x)=(-5)square +-5*k+60=0

=25-5k+60=0

-5k+85=0

-5k=-85

k=-85/-5

k=17