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#1 2006-09-30 13:19:19

justlookingforthemoment
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Registered: 2005-05-26
Posts: 2,161

Difference of two squares

Difference of two squares

Use the 'difference of two squares' rule to expand each the following.

1. (x + 5)(x - 5)
2. (x - 8)(x + 8)
3. (x + 2)(x - 2)
4. (3 - k)(3 + k)
5. (4 - y)(y + 4)
6. (2x - 1)(2x + 1)
7. (x + 2y)(x - 2y)
8. (7j + 13y)(7j - 13y)
9. (2x + √9)(2x - √9)
10. (√100x + √36y)(√100x - √36y)

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#2 2006-11-02 02:18:22

Toast
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Registered: 2006-10-08
Posts: 1,321

Re: Difference of two squares

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