Answer:
A. -7
Step-by-step explanation:
Okay so all this is doing is plugging in -2 in the place of x. 5(-2) + 3 = -7 Hope this helps.
It's not clear whether you meant 30n^(2b) or [30n^2] b.
I will assume the latter.
b can then be factored out of all three terms, resulting in
b [30n^2 - 87n + 30] = b [ 3 ] [10n^2 - 29n + 10 ]
Can you factor this further?
It 17 but you didn't give me a number line
