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Mathematics 9 Online
OpenStudy (anonymous):

complete the trinomial so that it is a perfect square. then factor the trinomial. k^2 - 3k

OpenStudy (lgbasallote):

first off...divide -3 by 2...what do you get

OpenStudy (anonymous):

-1.5

OpenStudy (lgbasallote):

right. now square it

OpenStudy (anonymous):

-2.25

OpenStudy (lgbasallote):

nope.. do (-1.5)^2

OpenStudy (anonymous):

2.25

OpenStudy (anonymous):

forgot how finicky calculators are

OpenStudy (lgbasallote):

right. or it's simply 9/4 in fraction form

OpenStudy (lgbasallote):

so there's your answer

OpenStudy (anonymous):

what does it factor to?

OpenStudy (lgbasallote):

the result when you divided -3 by 2 was -3/2 so factor would be (x-3/2)^2

OpenStudy (anonymous):

k. thanks

OpenStudy (lgbasallote):

welcome

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