Answer:
A rectangle
Step-by-step explanation:
The blue shape is a rectangle.
The fourth step is incorrect.
<h2>Polynomial</h2>
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.
<h3>How to factorize the polynomial?</h3>
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.
brainly.com/question/16059429
Answer:
What is exactly the question?
Answer:
c=A/2n
Step-by-step explanation:
A=2nc
c=A/2n
