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OpenStudy (anonymous):
solve for the solition set of the following expressions using completing square 1. x2+9x+18=0 2. 2x2+12x+4=0 3. x2+6x-8
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OpenStudy (anonymous):
help please
OpenStudy (anonymous):
1. 9/2 = 4.5 &4.5^2 = 20.25 so you need to add something onboth sides to 18 to get to 20.25 and then get a (x+4.5)^2= y 2. start by dividing the whole thing by 2
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