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69.93+21.51y(0.004056-y)=100-16.39y(1+y)
We move all terms to the left:
69.93+21.51y(0.004056-y)-(100-16.39y(1+y))=0
We add all the numbers together, and all the variables
21.51y(-1y+0.004056)-(100-16.39y(y+1))+69.93=0
We multiply parentheses
-21y^2+0.085176y-(100-16.39y(y+1))+69.93=0
We calculate terms in parentheses: -(100-16.39y(y+1)), so:We get rid of parentheses
100-16.39y(y+1)
determiningTheFunctionDomain -16.39y(y+1)+100
We multiply parentheses
-16y^2-16y+100
Back to the equation:
-(-16y^2-16y+100)
-21y^2+16y^2+16y+0.085176y-100+69.93=0
We add all the numbers together, and all the variables
-5y^2+16.085176y-30.07=0
a = -5; b = 16.085176; c = -30.07;
Δ = b2-4ac
Δ = 16.0851762-4·(-5)·(-30.07)
Δ = -342.66711304902
Delta is less than zero, so there is no solution for the equation
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