Answer :
Answer:
a^2 +2a -15
Step-by-step explanation:
(a+5)(a-3)
FOIL
First: a*a = a^2
outer: -3a
inner: 5a
last: 5(-3) = -15
Add them together
a^2 -3a+5a -15
a^2 +2a -15
Answer:
a^2 +2a -15
Step-by-step explanation:
(a+5)(a-3)
FOIL
First: a*a = a^2
outer: -3a
inner: 5a
last: 5(-3) = -15
Add them together
a^2 -3a+5a -15
a^2 +2a -15