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76.92+20y(0.004875-y)=100-13.33y(1+y)
We move all terms to the left:
76.92+20y(0.004875-y)-(100-13.33y(1+y))=0
We add all the numbers together, and all the variables
20y(-1y+0.004875)-(100-13.33y(y+1))+76.92=0
We multiply parentheses
-20y^2+0.0975y-(100-13.33y(y+1))+76.92=0
We calculate terms in parentheses: -(100-13.33y(y+1)), so:We get rid of parentheses
100-13.33y(y+1)
determiningTheFunctionDomain -13.33y(y+1)+100
We multiply parentheses
-13y^2-13y+100
Back to the equation:
-(-13y^2-13y+100)
-20y^2+13y^2+13y+0.0975y-100+76.92=0
We add all the numbers together, and all the variables
-7y^2+13.0975y-23.08=0
a = -7; b = 13.0975; c = -23.08;
Δ = b2-4ac
Δ = 13.09752-4·(-7)·(-23.08)
Δ = -474.69549375
Delta is less than zero, so there is no solution for the equation
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