Question

Jacki evaluated the expression below.
2 (3-1) + 4(8-12)
2 (2)+4(4)
8(2) + 16
16+16
32
What was Jacki's error?
Jacki should have simplified the exponent first.
Jacki should have multiplied 4 and 8 first.
Jacki did not subtract 12 from 8 correctly.
Jacki should not have multiplied 8 and 2.

Answer 1

Jacki didn’t subtract 12 from 8 correctly he was suppose to get a negative and not 12

Answer 2

The error which is created by Jacki in evaluating expression is that Jacki did not subtract 12 from 8 correctly.

What is expression?

Expression is basically combination of numbers, fraction,symbols, indeterminants. It is mostly not found in equal to form. It expresses a relationship.

How to evaluate expression?

The expression which is given is 2(3-1)+4(8-12)

First step: Subtract 1 from 3 and 12 from 8.

=2(2)+4(-4)

In this step Jacki did a mistake because he wrote 4 in place of -4.

Second step: Now multiply numbers inside.

=4-16

Third step: Subtract 16 from 4.

=-12

Hence the error created by Jacki in solving the expression is that he did not subtract 12 from 8 correctly.

Learn more about  expressions at https://brainly.com/question/723406

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