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April 18, 2014

April 18, 2014

Posted by **Lena** on Thursday, January 24, 2008 at 7:43am.

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**bobpursley**, Thursday, January 24, 2008 at 7:44amWhen no other method helps you break up a complex polynomial?

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**Lena**, Thursday, January 24, 2008 at 7:47amWe are learning about parabolas and the question was using partial facotring to find 2 points that lie on the parabola. How would I do that?

Ex. y=x^2-12x+23

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**becca**, Thursday, January 24, 2008 at 3:49pmIn mrs.Quimby's Class, everyone plays on a team. There are five more soccer players than baseball players. There are three more students on the track team than on the baseball team.There are two more football players than hockey players. There are three more students on the track team than the football team. Then number of baseball and football players equals 8. How many players are on each team? how many students are there in the class?

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**bobpursley**, Thursday, January 24, 2008 at 8:40amx^2 + 12x + ? what is the ? to make a perfect square. Answer, half of 12, squared, or six squared, or ...

x^2+12x+36 makes a perfect square.

y= x^2+12x + 36 +23 -36 Notice we added 36 and subtracted 36 to keep it equal to y.

y= (x+6)^2 - 13

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