A scientific simple answer please
2007-12-13 05:29:43 · 8 answers · asked by farawaysofar 2 in Science & Mathematics ➔ Mathematics
x + x =x^2 only when x=2
x^2 means x to the power of 2
2007-12-13 05:33:46 · update #1
x + x^2 -x =x^2
means that x^2+x^2
2007-12-13 05:35:26 · update #2
Obviously no answer
I still dont like this x+x^2-x=x^2
2007-12-14 03:20:53 · update #3
x + y = x²
y = x² - x
y = x ( x - 1 )
2007-12-13 05:32:18 · answer #1 · answered by jgoulden 7 · 0⤊ 0⤋
Interesting. If you plot z=x+y and z=x^2 the surfaces have a parabola-looking intersection. Let me see if I can come up with a mathematical description of it.
Ah, yea it's the collection of z for which y=x(x-1).
So parametrically the points are (x, x(x-1), x^2).
Your comment that plugging y=x(x-1) back into x+y=x^2 yielding x^2=x^2 is analogous to plugging a=5 back into a+5=10 and getting 10=10. It shows that the answer is correct.
Edit: You may not like it, but it is the answer. The functional form of the number you can add to x to get x^2 is x-x^2. The thing to keep in mind is that while this is a "duh" kind of answer, the three terms (x,x^2,x-x^2) are all different curves.
2007-12-13 14:17:33 · answer #2 · answered by BNP 4 · 0⤊ 0⤋
x+(x^2 - x) = x^2
2007-12-13 13:33:51 · answer #3 · answered by Prapanj Ganeshan 2 · 0⤊ 0⤋
y = x ( x - 1 )
2007-12-13 13:43:09 · answer #4 · answered by J 6 · 0⤊ 0⤋
Since x^2 is x TIMES itself, you generally cannot obtain "what".
2007-12-13 13:33:12 · answer #5 · answered by cattbarf 7 · 1⤊ 0⤋
x + y = x²
y = x² - x
2007-12-13 13:34:16 · answer #6 · answered by DWRead 7 · 0⤊ 0⤋
-2x
2007-12-13 13:31:51 · answer #7 · answered by judithgreanwood 3 · 0⤊ 1⤋
x?
2007-12-13 13:32:46 · answer #8 · answered by The bored and hyper one 3 · 0⤊ 1⤋