Precalculus Ma 112: Section 1.8 Completing the square #1
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thank you sir!
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(-9/4)=-2,25 -2,25-4=-6,25 -> -25/4
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Love this and all you do. Camerawork could be a little less choppy...Think of the Seinfeld where Jerry takes over for Kramer and then they love Jerry's work.
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@bob963me you should always ask why, don't just plug numbers into a formula.
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ohhhh I thought I missed something. Thanks
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First of all, thanks a bunch for this very informative video, just what I was looking for. I have a question though...
I understood everything up until:
(x+3/2)²-9/4-4
then you suddenly made it to (x+3/2)²-9/4-16/4
why did you make -4 to -16/4?
Unknown1101 2 years ago
Because subsequently, I will have to add -9/4 and -4. To add fractions, one gets a common denominator. In the sequel, we will add -B^2/(4A) + C= (-B^2+4AC)/(4A).
ProfessorElvisZap 2 years ago
(5/6)^2 = 25/36, you wrote 25/12
lamarjlp914 2 years ago
3(25/36)=25/12 ---- you have to multiply through by the 3.
ProfessorElvisZap 2 years ago