Answer:
Hey! Im not 100% of what you are asking, but here you go :)
8(a+5) (this is your equation)
Multiply 8xa, which just is 8a
Next, multiply 8x5 which is 40
Because 8a and 40 are not like terms and they cannot be added together, your answer is just
8a+40.
Hope I helped! Let me know if this isnt what you needed and i can try and fix it :')