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-4.9x^2+2.4x-1.6=0
a = -4.9; b = 2.4; c = -1.6;
Δ = b2-4ac
Δ = 2.42-4·(-4.9)·(-1.6)
Δ = -25.6
Delta is less than zero, so there is no solution for the equation
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