What is (3n – 2) equal to? Enter your answer in the box.
1 answer:
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Yes, parentheses can change the order in which operations are performed in an expression.
Let us understand this with two examples.
First example.
Let us suppose we have to simplify the expression
In this expression we have evaluated subtraction first instead of multiply.
Second example.
Let us suppose we have to simplify the expression
In this expression we have evaluated multiplication first and then subtraction.
Therefore, from above two examples we can see that parentheses can change the order in which operations are performed in an expression.
We have the value -0.000125
Since this is negative value the cube number cannot be positive since it will not give an negative answer
hence the answer should be a negative number
this already eliminates the option A, B and D
now we have
=-0.05 (option C)