SOLUTION: how do u solve 4(a)= 3a*3a-2

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Question 238764: how do u solve 4(a)= 3a*3a-2
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
4(a)= 3a*3a-2
4A=9A^2-2
9A^2-4A-2=0
A+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
A=(4+-SQRT[-4^2-4*9*-2])/2*9
A=(4+-SQRT[16+72])/18
A=(4+-SQRT88)/18
A=(4+-9.38)/18
A=13.38/18
A=.7434 ANS.
A=(4-9.38)/18
A=-5.38/18
A=-.299 ANS.