Suppose a refrigerator that sells for$700 costs $85 a year for electricity. Write an expression for the cost to buy and run the
2 answers:
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The above expression is not in its simplest form, and we need to simplify it, that is what asked in the question.
Given equation,
First of all, let's open the parentheses to combine the like terms for simplifying.
Arranging the like terms, x² with x², x with x and constant terms near to each other.
Simplying further,
So, the correct option is C
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