400=-4t(2)

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Solution for 400=-4t(2) equation: 



400=-4t(2)

We move all terms to the left:

400-(-4t(2))=0

We add all the numbers together, and all the variables

-(-4t^2)+400=0

We get rid of parentheses

4t^2+400=0

a = 4; b = 0; c = +400;
Δ = b2-4ac
Δ = 02-4·4·400
Δ = -6400
Delta is less than zero, so there is no solution for the equation

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