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 Apr 17 comment Simple interest problem @Al.Ka, my belief is that the best way to teach is by direct instruction. If a student sees enough well worked examples, they will learn to emulate that over time. Apr 17 comment Simple interest problem @Larry, what about my answer, I answered first. Apr 17 answered Simple interest problem Apr 4 accepted For what k values are there more than one solution to the following equation? Apr 4 comment When will one maximum turn into three maximums? @ClaudeLeibovici, by distinct, I mean when there exists three maximum solutions to the equation y'(x) = 0, as opposed to x = 0 being the only such solution. Apr 4 accepted How to solve this equation for x? $0 = (x+k)e^{-(x+k)^2}+(x-k)e^{-(x-k)^2}$ Apr 4 comment Using CLT to calculate probability question What is the "right answer" ? Apr 4 awarded Custodian Apr 4 reviewed Approve For what k values are there more than one solution to the following equation? Apr 4 asked When will one maximum turn into three maximums? Apr 4 revised For what k values are there more than one solution to the following equation? added 475 characters in body Apr 4 comment How to solve this equation for x? $0 = (x+k)e^{-(x+k)^2}+(x-k)e^{-(x-k)^2}$ @Winther, can you help me with this similar quesiton: math.stackexchange.com/questions/1219657/… Apr 4 comment How to solve this equation for x? $0 = (x+k)e^{-(x+k)^2}+(x-k)e^{-(x-k)^2}$ @ClaudeLeibovici, I was more interested in whether there was a way to manipulate to find x, rather than the solutions themselves. Claude are you able to help on this queston: math.stackexchange.com/questions/1219657/… Apr 4 asked For what k values are there more than one solution to the following equation? Apr 4 comment How to solve this equation for x? $0 = (x+k)e^{-(x+k)^2}+(x-k)e^{-(x-k)^2}$ @Winther, yes I was able to figure that one out. Apr 4 comment How to solve this equation for x? $0 = (x+k)e^{-(x+k)^2}+(x-k)e^{-(x-k)^2}$ @Winther, yes there should be 3 solutions for x. One is x = 0 and the other two depend on the value of k. Apr 4 asked How to solve this equation for x? $0 = (x+k)e^{-(x+k)^2}+(x-k)e^{-(x-k)^2}$ Apr 3 asked Intuitive explanation for dividing by n-1 when calculating sample variance? Apr 2 awarded Yearling Apr 2 comment What is the expected distance between these two points? Thanks this is what I thought.