2n^2 - n - 6 = 0

Need help with completing the square? i'm getting stuck because I can't seem to find the square root
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2 Answers

2x^2 -x-6=0 become (x-2)*(x+1.5)=0

or maebee yu wanna multipli that bi 2?????
by

2(x^2-1/2 x-3)=0

(x^2-2*x*/1/4+1/16-1/16-3)=0

(x-1/2)^2- 3 1/16=0

(x-1/2)^2=49/16

x-1/2=+-(7/4)

x=7/4+1/2=9/4

x=-7/4+1/2=-5/4

 

by Level 8 User (35.3k points)

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