Answer:
Options A and C are correct choices.
Step-by-step explanation:
We have been given an expression 
and we are asked to choose all the equivalent expressions from given choices.
Let us simplify our given expression.
Let us see which of our given choices matches with our answer.
A. 
Upon using distributive property 
we will get,
Therefore, option A is a correct choice.
B. 
Upon using distributive property we will get,
Since this expression is not equivalent to our answer, therefore, option B is not a correct choice.
C. 
Upon removing parenthesis we will get,
Upon combining like terms we will get,
Therefore, option C is the correct choice.
Answer:
2-[1, 2]
Step-by-step explanation:
From the graph, we can conclude the following things:
1. The graph is of degree 4 as it intersects the x axis at 4 points.
2. The graph tends to infinity for increasing the value of 'x' along positive or negative x-axis.
3. The graph has 3 turning points between the intervals [-1, 0], [1, 2] and [2, 3]
4. Local maximum: The top of mountain of the graph represents local maximum. So, during the interval [1, 2], there is a local maximum.
5. Local minimum: The lowest point or the valley of the graph represents local minimum.
So, during the intervals [-1, 0] and [2, 3], there are local minimums.
Thus, there is only one local maximum during the interval [1, 2].
8.3 is 10 times 0.83 so it is greater by a factor of 10
