SOLUTION: 2z^2 + 3=8z

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Question 281535: 2z^2 + 3=8z
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
2z^2+3=8z
2z^2-8z+3=0
z+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
z=(8+-sqrt[-8^2-4*2*3])/2*2
z=(8+-sqrt(64-24])/4
z=(8+-sqrt40)/4
z=(8+-6.3246)/4
z=(8+6.3246)/4
z=14.3246/4
z=3.58 ans.
z=(8-6.3246)/4
z=1.6754/4
z=.419 ans.