Question

Mia is factoring the polynomial x2 4x – 12. She uses the steps shown. A 2-column table with 4 rows. The first column has no label with entries Step 1, Step 2, Step 3, Step 4. The second column is labeled x squared 4 x minus 12 with entries x squared 6 x minus 2 x minus 12, (x squared 6 x ) minus (2 x 12), x(x 6) minus 2(x 6), (x 6)(x 2). In which step did Mia make an error? Step 1 Step 2 Step 3 Step 4.

Answer 1

The fourth step is incorrect.

Polynomial

Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.

Given

x² + 4x -12 is a polynomial.

How to factorize the polynomial?

              x² + 4x - 12

Step 1.    x² + 6x - 2x -12

Step 2.  (x² + 6x) - (2x + 12)

Step 3.   x(x + 6) - 2 (x + 6)

Step 4.   (x + 6)(x - 2)

Thus, in fourth step in place of (x + 2), (x - 2) is to be put.

Thus, The fourth step is incorrect.

More about the polynomial link is given below.

https://brainly.com/question/16059429