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April 19, 2014

Homework Help: calculus

Posted by steve Alexander on Wednesday, October 29, 2008 at 12:42am.

s=-4.9t+245t+14.7
s=-4.9(t-245/4.9t)+14.7
s=-4.9(t-50t)+14.7
s=-4.9(t-50+625-625)+14.7
s=-4.9(t-50+625)+(-4.9)(-625)+14.7
s=-4.9(t-25)+30625.5+14.17
s=-4.9(t-25)+3077.2


as you can see on the process of the problem on the part that says...s=-4.9(t-50+625-625)+14.7...the +625-625 on the next step are on different positions like...-4.9(t-50+625)...and(-4.9)(-625)...i want to know why and why the negative 625 its multiplying by the negative 4.9 please if somebody can explain me all this problem

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