4 times a number cubed decreased by 7
Mathematics · College · Tue Nov 03 2020
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4 times a number cubed decreased by 7 can be represented as,
4x^3 - 7
We represent the 4 times a number as 4x, and since it is stated the number is cubed, we raised it to the degree of 3. It is also stated that the number is decreased by 7, when we say decreased, this means that the operation that was used is subtraction. It is similar to the phrases “less than” , “diminished”, “subtracted”, etc.