Sagot :
Answer:
a² -9
Step-by-step explanation:
SOLUTION :
Expand the polynomial using the FOIL method
(a-3)(a+3)
F = a²
O = 3a
I = -3a
L = -9
a² +3a -3a -9
a²-9
FINAL ANSWER :
a²-9
Answer:
a² -9
Step-by-step explanation:
SOLUTION :
Expand the polynomial using the FOIL method
(a-3)(a+3)
F = a²
O = 3a
I = -3a
L = -9
a² +3a -3a -9
a²-9
FINAL ANSWER :
a²-9