Question

x3-6x-15x+180 divisible by x2+x-12​

Answer 1

Given that :

p(x)=3x-6x-15x+180=-18x+180

g(x)=2x+x-12=3x-12

By dividing p(x) by g(x)

3x-)-18+180(-6

-18x+72

________

+252

Hence ,3x--6x-15x+180 is not divisible by2x+x-12