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9x^2-54x-5=-90
We move all terms to the left:
9x^2-54x-5-(-90)=0
We add all the numbers together, and all the variables
9x^2-54x+85=0
a = 9; b = -54; c = +85;
Δ = b2-4ac
Δ = -542-4·9·85
Δ = -144
Delta is less than zero, so there is no solution for the equation
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