-5t+4t^2+5t-20=

Solution for -5t+4t^2+5t-20= equation:

Simplifying
-5t + 4t2 + 5t + -20 = 0

Reorder the terms:
-20 + -5t + 5t + 4t2 = 0

Combine like terms: -5t + 5t = 0
-20 + 0 + 4t2 = 0
-20 + 4t2 = 0

Solving
-20 + 4t2 = 0

Solving for variable 't'.

Move all terms containing t to the left, all other terms to the right.

Add '20' to each side of the equation.
-20 + 20 + 4t2 = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 4t2 = 0 + 20
4t2 = 0 + 20

Combine like terms: 0 + 20 = 20
4t2 = 20

Divide each side by '4'.
t2 = 5

Simplifying
t2 = 5

Take the square root of each side:
t = {-2.236067978, 2.236067978}