Question

factorise 9z^3-27z^2-100z+300, if 3z+10 is one of the factor​

Answer 1

Answer:

9z³-27z²-100z+300

= 9z³-30z²-3z²+10z-90z+300

= 3z²(3z-10)-z(3z-10)-30(3z-10)

= (3z-10)(3z²-z-30)

= (3z-10)(3z²-9z+10z-30)

= (3z-10)( 3z(z-3) +10(z-3))

=(3z-10)(z-3)(3z+10)

hope it helps u.....^_^

Answer 2

Answer:

if 3z+10 is the factor of given polynomial,

then,

3z+10=0

3z=-1

z=-10/3

Hope it helps you

If it helps, then mark me as brainliest