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79.37+14.08y(0.010288-y)=100-8.7y(1+y)
We move all terms to the left:
79.37+14.08y(0.010288-y)-(100-8.7y(1+y))=0
We add all the numbers together, and all the variables
14.08y(-1y+0.010288)-(100-8.7y(y+1))+79.37=0
We multiply parentheses
-14y^2+0.144032y-(100-8.7y(y+1))+79.37=0
We calculate terms in parentheses: -(100-8.7y(y+1)), so:We get rid of parentheses
100-8.7y(y+1)
determiningTheFunctionDomain -8.7y(y+1)+100
We multiply parentheses
-8y^2-8y+100
Back to the equation:
-(-8y^2-8y+100)
-14y^2+8y^2+8y+0.144032y-100+79.37=0
We add all the numbers together, and all the variables
-6y^2+8.144032y-20.63=0
a = -6; b = 8.144032; c = -20.63;
Δ = b2-4ac
Δ = 8.1440322-4·(-6)·(-20.63)
Δ = -428.79474278298
Delta is less than zero, so there is no solution for the equation
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