Question

simplify the expression. state any excluded values b^2+8b+15/b+5

Answer 1

(b+3)(b+5)/(b+5) cancel like terms top and bottom=(b+3) so b= -3
exclude b= -5 as this would make division by zero which is not allowed

Answer 2

but what about the 8b

Answer 3

the top factors in the two brackets multiply the brackets you will see the 8b is taken care of