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10x^2+2=-28
We move all terms to the left:
10x^2+2-(-28)=0
We add all the numbers together, and all the variables
10x^2+30=0
a = 10; b = 0; c = +30;
Δ = b2-4ac
Δ = 02-4·10·30
Δ = -1200
Delta is less than zero, so there is no solution for the equation
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