Answer:
it should be 6 not 100% sure though
Step-by-step explanation:
The missing factor is (a -1) I believe. If you foil (5a + 9)(a - 1) you would get 5a^2 + 4a - 9.
9514 1404 393
Answer:
C, D
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)(a^c) = a^(b+c)
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The correct equations are the last two.
For the first two, the appropriate products are ...

The answer would be 30.0385