Factoring

[tdrake]

Help Please and show me the work so I can understand. Thanks This is practice problems from a text book. I have never taken any Algebra before in my life. I really do not know where to begin.


9-x^2




4x^2+81-36x




4y^2+16y+16




x^2-25
x+5

 

[Deleted member 4993]

Help Please and show me the work so I can understand. Thanks


9-x^2




4x^2+81-36x




4y^2+16y+16




x^2-25
x+5

In all of these you need to use:

a² - b² = (a+b)(a-b)

(a-b)² = a² - 2ab + b²

(a+b)² = a² + 2ab + b²

Please share your work with us, indicating exactly where you are stuck - so that we may know where to begin to help you.