50=30x-4.9x^2

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Solution for 50=30x-4.9x^2 equation: 



50=30x-4.9x^2

We move all terms to the left:

50-(30x-4.9x^2)=0

We get rid of parentheses

4.9x^2-30x+50=0

a = 4.9; b = -30; c = +50;
Δ = b2-4ac
Δ = -302-4·4.9·50
Δ = -80
Delta is less than zero, so there is no solution for the equation

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