-50=t(20+4.9t)

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Solution for -50=t(20+4.9t) equation: 



-50=t(20+4.9t)

We move all terms to the left:

-50-(t(20+4.9t))=0

We add all the numbers together, and all the variables

-(t(4.9t+20))-50=0



We calculate terms in parentheses: -(t(4.9t+20)), so:

t(4.9t+20)

We multiply parentheses

4t^2+20t

Back to the equation:

-(4t^2+20t)



We get rid of parentheses

-4t^2-20t-50=0

a = -4; b = -20; c = -50;
Δ = b2-4ac
Δ = -202-4·(-4)·(-50)
Δ = -400
Delta is less than zero, so there is no solution for the equation

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