Question

Cara evaluated the expression below.

Answer 1

She multiplied 4 and 7 together and did not multiply 4 and 13

4(7 - 13) / 3 = (28 - 52)/3 <== that is what it should be....not (28 - 13) / 3

Answer 2

Answer:

Cara  multiplied only 4 and 7 together and did not multiply 4 and 13.

Step-by-step explanation:

Let us evaluate the given expression step by step,

$\frac{4(7-13)}{3} +(-4)^{2} -2(6-2)$

We can evaluate this expression in two ways; either by subtracting -13 from 7 and then multiply by 4 or by multiplying 4 to 7  and -13.

$\frac{28-52}{3} +16-2(4)$

$\frac{-24}{3} +16-8$

$-8+16-8=-16+16=0$

Now let us see where Cara made an error. We can see Cara just multiplied only 4 and 7 together and did not multiply 4 to 13.

Therefore, Cara made error in her first step.