ry24
ry24
05-05-2017
Mathematics
contestada
Not sure how to complete #14
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lisee7
lisee7
05-05-2017
14. Add the line times the outside number
X(X+4)= (2√3)^2
X^2+4X= 4√9
X^2+4X= 4times 3
X^2+4X=12
X^2+4X-12=0
(X+6)(X-2)=0
X=-6 X=2
Answe can't be negative so it's X=2
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