Okay, help??? I'll attach a doc. and pdf. with the questions. It's basically a math assignment that I am having TONS of trouble with... I completed it once already and FAILED it... literally. Please help me!

Question

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attachment

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Here's the PDF

anonymous · Answer

1) The product of (a − b)(a − b) is a2 − b2. -   Never unless a and b were 0.

2)Find the product of (x − 5)^2.  -    x^2- 10x + 25

3) Find the product of (x + 3)^2.   -    x^2 + 6x + 9

anonymous · Answer

4) Find the product of (x + 3)(x − 3).    -     x^2 - 9

5)Find the product of (3x − 7y)^2.           -        9x^2- 42xy + 49y^2
 
6) Find the product of (4x + 3y)2.       -        16x^2 + 24xy + 9y^2

7) Find the product of (2x + 5y)(2x − 5y).         -       4x^2 - 25 y^2

anonymous · Answer

8) Find the two products below. Compare and contrast, in complete sentences, the similarities and differences of the two. (x + 6)(x − 6) and (x − 6)(x − 6)

One is a difference of squares (x+6)(x-6)  whereas (x-6)(x-6) is not. When expanded the difference of squares  second term is elimintated and equals x^2- 36 wheile the other one expands into x^2 - 12x + 36

anonymous · Answer

You just need more practise on expanding these polynomials. If it helps, you should write it out the long way and use FOIL to expand it.

ex)    (x + 4) (x -2) = x^2 - 2x + 4x -8
                              = x^2 + 2x - 8

Try not to skip steps when your first learn this. After lots of practise you can basically expand it in your head. Goodluck! :D

anonymous · Answer

Thanks! :) This helped ALOT! :)