To me it looks like A is your best answer because it is dividing 4 by a half.
hope that helps. ;)
To perform this check, you must use the following theorem: 
is a lower bound for the zeroes of 
if, when divide by 
, the quotient and the remainter alternate signs.
Since the long division yields the result
You can see that the signs don't alternate (the last two terms are positive). So, -1 is not a lower bound.
In fact, the actual roots of the polynomial are -3, -2, 1, 3, so as you can see there are roots smaller than -1.
Answer:
4x
Step-by-step explanation:
Simplify. Combine like terms. Note that x = 1x, being that there is one variable of x.
11x - 6x = 5x
5x - x = 4x
4x is your answer.
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Two significant Figures I believe because you want to go with the least amount of sig figs that are already in your problem which would be 2 in 7500 because the zeros are not significant
