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2w^2+20=4
We move all terms to the left:
2w^2+20-(4)=0
We add all the numbers together, and all the variables
2w^2+16=0
a = 2; b = 0; c = +16;
Δ = b2-4ac
Δ = 02-4·2·16
Δ = -128
Delta is less than zero, so there is no solution for the equation
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