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marcthemathtutor

Answer:

Between line 1 and 2

Step-by-step explanation:

4x³ +2x²- 6x+ 3     (Line 1)

note that +3 can be written as  -(-3), giving us:

4x³ +2x² -6x - (-3)

if we group the first two terms and the last two terms, we will get

(4x³ +2x²) + [ -6x - (-3) ]   (factor out 2x from first group and -3 from second group)  

= 2x²(2x +1) -3(2x - 1 )

if we compare this with (Line2) we can see that the difference is in the sign of the last term inside the second group. Hence this is where the mistake is made Between line 1 and 2

xero099

By applying an straightforward approach we conclude that the error in the calculations shown in the statement occurred from line (1) to line (2).

How to find a procedure error by applying algebra

A straightforward approach consists in applying algebraic definitions and theorems to find any difference with respect to the procedure shown on the statement. Our procedure is shown below:

  1. 4 · x³ + 2 · x² - 6 · x + 3     Given
  2. 2 · x² · (2 · x + 1) - 3 · (2 · x - 1)     Associative, commutative and distributive properties

By applying an straightforward approach we conclude that the error in the calculations shown in the statement occurred from line (1) to line (2).

To learn more on polynomials: https://brainly.com/question/11536910

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