Question

Mia is factoring the polynomial x2 4x – 12. she uses the steps shown. in which step did mia make an error?

Answer 1

First, evaluate the given polynomial X2+4X-12. We can check the error if performed complete factoring solution and compare the result to Mia's answer. We need to replace 4X with 6X-2X, the polynomial will become X2+6X-2X-12. Proceed with grouping of terms such as (X2+6X) -(2X+12). Then factor common value for each group such as the result become an X (X+6) -2 (X+6). For the second time, we can proceed with grouping of terms such as the result become (X+6) (X-2). We can conclude that Mia is incorrect in the last step.

Answer 2

Mia made mistake in the last step is factoring the polynomial $x^{2} +4x-12$.

Given that,

Polynomial = $x^{2} +4x-12$

We have to find,

Mia is factoring the polynomial. she uses the steps did Mia make error.

According to the question,

First, evaluate the given polynomial $x^{2} +4x-12$.

We can check the error if performed complete factoring solution.

Compare the result to Mia's answer.

We need to replace 4x with 6x - 2x and,

The polynomial will become $x^{2} +6x-2x-12$

Proceed with grouping of terms such as ($x^{2} +6x$) -(2x+12).

Then,

Factor common value for each group such as the result become an X (x+6) -2 (x+6).

For the second time

Proceed with grouping of terms such as the result become (x+6) (x-2).

We can conclude that Mia is incorrect in the last step.

Hence, Mia made mistake in the last step is factoring the polynomial $x^{2} +4x-12$.

For the more information about Quadratic equation click the link given below.

https://brainly.com/question/17718371