x(x+4)≡ x^2 thank you
How do you complete an identity? ???????????????? Watch
- Thread Starter
- 15-04-2013 18:04
- 15-04-2013 20:16
No idea, but I can help you with English. You only need one question mark after a question. This advice will help you enormously in the exams.
You're welcome in advance.
- 15-04-2013 20:44
x(x+4) ≡ x^2 + 4x.
An identity is "correct" for all values of x - as opposed to an equation which is correct for only certain values of x.
If this is not the answer, I really am stumped, since the idea is quite simple, and I can't see any other interpretation