Question

What's New
Squares of Plus and Minus
Determine the product of each sum and difference of two terms. Write your answers
on your answer sheet.
1. (x + 1)(x - 1)
2. (x + 4)(x – 4)
3. (x + 3)(x – 3)
4. (x + 7)(x – 7)
5. (x + 9) (x – 9)
n​

Answer 1

Answer:

Step By Step : -

1. X Square - X + X - 1

= X Square - 1

2.X Square - 4X + 4X - 16

= X Square - 16

3. X Square - 3X + 3X - 9

= X Square - 9

4.X Square - 7X + 7X - 49

=X Square - 49

5.X Square - 9X + 9X - 81

=X Square - 81

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