SOLUTION: I am the neighbor of the kid next door...could you remind me how to do this so I can help him do his math? :-0 a+(a*2)=27

Question 129656: I am the neighbor of the kid next door...could you remind me how to do this so I can help him do his math? :-0
a+(a*2)=27
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
A+A^2=27
A^2+A-27=0
USING THE QUADRATIC EQUATION:

A=(-1+-SQRT(1^2-4*1*-27])/2*1
A=(-1+-SQRT[1+108])/2
A=(-1+-SQRT109)/2
A=(-1+-10.44)/2
A=(-1+10.44)/2
A=9.44/2
A=4.72 ANSWER.
A=(-1-10.44)/2
A=-11.44/2
A=-5.72 ANSWER.

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