0=t^2-4

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Solution for 0=t^2-4 equation: 


Simplifying
0 = t2 + -4

Reorder the terms:
0 = -4 + t2

Solving
0 = -4 + t2

Solving for variable 't'.

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

Add '-1t2' to each side of the equation.
0 + -1t2 = -4 + t2 + -1t2
Remove the zero:
-1t2 = -4 + t2 + -1t2

Combine like terms: t2 + -1t2 = 0
-1t2 = -4 + 0
-1t2 = -4

Divide each side by '-1'.
t2 = 4

Simplifying
t2 = 4

Take the square root of each side:
t = {-2, 2}

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