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You are not logged in. #1 20090817 14:40:13
Solving EquationsI have written a general page on Solving Equations "The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman #2 20090817 16:06:39
Re: Solving EquationsHi MathsisFun; If you wanted to multiply 38 * 42 you could use that form with y=10. Answer 16*100  4 = 1596 like magic. For 63 * 57 63*57 = 36 * 100 9 = 3591 With a little practice and algebra, you can do lots of arithmetic in your head. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 