Question

Divide 25a³b²+15a²b-10ab by 5ab​

Answer 1

Answer:

5a²b+3a-2

Step-by-step explanation:

[25a³b²+15a²b-10ab] / 5ab

= 5ab(5a²b+3a-2) / 5ab

= 5a²b+3a-2

Answer 2

Step-by-step explanation:

Divide 25a³b²+15a²b-10ab by 5ab

If (x−1) is a factor of p(x)

Then p(1)=0

p(x)=kx2−3x+k

p(1)=k−3+k

0=2k−3

So k=23.