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(2u-3)(2u-3)=4u-6u-9
We move all terms to the left:
(2u-3)(2u-3)-(4u-6u-9)=0
We add all the numbers together, and all the variables
(2u-3)(2u-3)-(-2u-9)=0
We get rid of parentheses
(2u-3)(2u-3)+2u+9=0
We multiply parentheses ..
(+4u^2-6u-6u+9)+2u+9=0
We get rid of parentheses
4u^2-6u-6u+2u+9+9=0
We add all the numbers together, and all the variables
4u^2-10u+18=0
a = 4; b = -10; c = +18;
Δ = b2-4ac
Δ = -102-4·4·18
Δ = -188
Delta is less than zero, so there is no solution for the equation
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