45=10t-4.5t^2

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Solution for 45=10t-4.5t^2 equation: 



45=10t-4.5t^2

We move all terms to the left:

45-(10t-4.5t^2)=0

We get rid of parentheses

4.5t^2-10t+45=0

a = 4.5; b = -10; c = +45;
Δ = b2-4ac
Δ = -102-4·4.5·45
Δ = -710
Delta is less than zero, so there is no solution for the equation

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