i think that is x + x^2 = 3X and i get to x^2 = 2x and get stuck...if thats even the way to do it. If you figure it out, please show the steps. Thanks and first correct answer gets 10pts and pride :)
2007-02-25 21:18:46 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
the number is 3
square: 3×3=9
2007-02-25 21:27:38 · answer #1 · answered by Afsaneh D 2 · 0⤊ 0⤋
You're doing fine. But think: if x squared (which is x times x) is the same as 2x (which is 2 times x), then x must be 2. And, sure enough: 2 plus 4 (which is 2 squared) equals 6, which is 3 times 2.
2007-02-26 10:09:16 · answer #2 · answered by Anonymous · 0⤊ 0⤋
well, the number is 3, the square is 9.
.
2007-02-26 05:21:52 · answer #3 · answered by crzywriter 5 · 0⤊ 0⤋
you are right... from x^2=2x, we can say that since x is not equal to zero (as the question says its a positive no,), we can cancel off x on each side of the equation to get x=2.
2 + 4 = 6= 3x2
2007-02-26 05:26:10 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Try this page..it talks about cubed roots....
PDF...
http://www.scribetec.co.uk/new/filedump/Square_and_cube_web.pdf
HTML may not come up...
http://72.14.253.104/search?q=cache:vsMTDjmIPDcJ:www.scribetec.co.uk/new/filedump/Square_and_cube_web.pdf+cubed+square+root&hl=en&ct=clnk&cd=3&gl=us
2007-02-26 05:40:57 · answer #5 · answered by yiqqahah 4 · 0⤊ 0⤋