10/26/18

(b) Find the values of x for which the volume is greater than 200in^3 and find largest volume

A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 12 in. by 30 in. by cutting out equal squares of side x at each corner and then folding up the... more

factor x^3+5x^2-3x-15=0

I cannot remember how to factor to the cubic term 

add x/ x+3 + 6/x+5

adding    x/x+3 + 6/x+5  

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