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0=4.9x^2+10.6x+40
We move all terms to the left:
0-(4.9x^2+10.6x+40)=0
We add all the numbers together, and all the variables
-(4.9x^2+10.6x+40)=0
We get rid of parentheses
-4.9x^2-10.6x-40=0
a = -4.9; b = -10.6; c = -40;
Δ = b2-4ac
Δ = -10.62-4·(-4.9)·(-40)
Δ = -671.64
Delta is less than zero, so there is no solution for the equation
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