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two students simplified the expressions shown. describe each student's mistake and give the correct simplified expression.


Tyrell ) 16 - 2 (4 + 3x)

16 - 8 + 3x

3x + 8 -5x

A. Describe tyrell's mistake:

B. What is the correct simplified expression?:

Respuesta :

A. Tyrell's mistake was he did not open the bracket properly.

B. The correct simplified expression is 8 -6x.

From the question,

Tyrell simplified the expression 16 - 2 (4 + 3x) as 16 - 8 + 3x.

  • Tyrell's mistake was he did not open the bracket properly. He was supposed to multiply the term outside (-2) by each of the terms inside the bracket (4 and +3x).

  • The correct simplified expression is as follows

16 - 2 (4 + 3x)

First, open the bracket by distributing -2. We get

16 -8 -6x

Simplifying further, we get

8 -6x

Hence, the correct simplified expression is 8 -6x.

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