how do i use the distrubutive property to factor this expression?

Question

d^2+8d+7

Answer 1

ok so the problem is:d^2+8d+7
so now
d(d+8)+7

i guess its this.but don't write this down coz i m not sure first try to find out. :)

Answer 2

Just factor it.
The answer is (d+7)(d+1)
You can use the distributive property to prove that those factors work, but it won't help you solve it. You can do that by inspection.

Answer 3

d(d+8)+7 is one way to factor it, but a better way is
d(d+7) + d + 7
= (d+7)(d+1))
The two expressions are equal.