 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from Shaun: This is part of a larger Calculus problem but I am stuck on the algebra. I need to factor (a-b) out of the following: a(a+1) - b(b+1). I know it is simple but I cannot remember how. Thanks, Shaun |
Hi Shaun,
It's the difference of squares that you need,
a2 - b2 = (a - b)(a + b)
Does this help?
If you need further assistance write back,
Penny
| ||
| ||
| ||
 |
 |
|
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.