MadonnaDentino216
MadonnaDentino216 MadonnaDentino216
  • 23-09-2015
  • Mathematics
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a student wrote that there are two terms in the expression 3p - (7 - 4q). explain the student's error.

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taskmasters
taskmasters taskmasters
  • 01-10-2015
The student wrote that there are two terms in the expression 3p - (7-4q).
However, if you are going to evaluate the expression, it has three terms. Observe the expression below. 
3p - (7-4q)
3p- 7 + 4q

Expressions are symbols, numbers and operators (such as +, ×, ÷ and -) grouped together that show the value of something.
Example: 4× - 7 is an expression.
In 4x-7 =5, 4x, 7, and 5 are called terms.



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