Question

show that (x-1) is a factor of the polynomial x³-13x²+32x-20​

Answer 1

Step-by-step explanation:

(x-1) =0

x= 1

x³-13x²+32x-20=0

1³-[13×(1²)]+(32×1)-20=0

1-13+32-20=0

-12+12=0

so, (x-1) is a factor of the given polynomial by factor theorem.