The missing factor is (a -1) I believe. If you foil (5a + 9)(a - 1) you would get 5a^2 + 4a - 9.
I think you would distribute what is in the parentheses and then make it so only a and b are on the left and i and the other characters that can be simplified are on the left but feel free to Google it.
Answer:
"ELO MESSI"
Step-by-step explanation:
Hope it helps
Answer:
8 kiwis
Step-by-step explanation:
(÷4)32=$16(÷4)
8 =$4
hope this helps