Question

Huda evaluated the expression below. What was Huda’s error?

Answer 1

Answer:

Huda found the product of $-3$ and $9$ as positive $27$.

Step-by-step explanation:

We have been given an image, which shows Huda's work of evaluating an expression. We are asked to find Huda's error.

The given expression is: $-3(8-5)^2-(-7)$.

We will evaluate our given expression using order of operations PEMDAS.

$-3(3)^2-(-7)$

$-3(9)+7$

$-27+7$

$-20$

We can see from Huda's work that he found the product of negative 3 and 9 as positive 27, therefore, Huda made a mistake in 3rd step.

Answer 2

Answer:

(-3 multiplied by 9 equals -27 and Huda has set 27)

Step-by-step explanation:

we have

$-3(8-5)^{2}-(-7)$

$-3(3)^{2}-(-7)$

$-3(9)-(-7)$

$-27-(-7)$ -----> Huda's error (-3 multiplied by 9 equals -27 and Huda has set 27)

$-27+7$

$-20$