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(y+7)(y+7)=y*2
We move all terms to the left:
(y+7)(y+7)-(y*2)=0
We add all the numbers together, and all the variables
(y+7)(y+7)-(+y*2)=0
We get rid of parentheses
(y+7)(y+7)-y*2=0
We multiply parentheses ..
(+y^2+7y+7y+49)-y*2=0
Wy multiply elements
(+y^2+7y+7y+49)-2y=0
We get rid of parentheses
y^2+7y+7y-2y+49=0
We add all the numbers together, and all the variables
y^2+12y+49=0
a = 1; b = 12; c = +49;
Δ = b2-4ac
Δ = 122-4·1·49
Δ = -52
Delta is less than zero, so there is no solution for the equation
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