Question

{2+(x-1)}{2-(x-1)} = ?

Answer 1

Answer:

3-x²

Step-by-step explanation:

1. Bracket is opened having a negative sign outside the bracket, hence the signs inside the bracket will change.

2. Solve the signs and constants.

3. Brackets are joined without any sign displayed means there are connected through multiplication.

4. Multiple the numbers.

Evaluation :

{2+x-1} {2-x+1}

{1+x} {3-x}

1+x X 3-x

3-x²

Answer 2

{2+(x-1)} {2-(x-1)}

=> (2)² - (x-1)²

=> 4 - (x² - 2x + 1)

=> 4 - x² + 2x - 1

=> 2x - x² + 3

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