4.9t^2-10t+84=0

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Solution for 4.9t^2-10t+84=0 equation:


Simplifying
4.9t2 + -10t + 84 = 0

Reorder the terms:
84 + -10t + 4.9t2 = 0

Solving
84 + -10t + 4.9t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
4.9 the coefficient of the squared term: 

Divide each side by '4.9'.
17.14285714 + -2.040816327t + t2 = 0

Move the constant term to the right:

Add '-17.14285714' to each side of the equation.
17.14285714 + -2.040816327t + -17.14285714 + t2 = 0 + -17.14285714

Reorder the terms:
17.14285714 + -17.14285714 + -2.040816327t + t2 = 0 + -17.14285714

Combine like terms: 17.14285714 + -17.14285714 = 0.00000000
0.00000000 + -2.040816327t + t2 = 0 + -17.14285714
-2.040816327t + t2 = 0 + -17.14285714

Combine like terms: 0 + -17.14285714 = -17.14285714
-2.040816327t + t2 = -17.14285714

The t term is -2.040816327t.  Take half its coefficient (-1.020408164).
Square it (1.041232821) and add it to both sides.

Add '1.041232821' to each side of the equation.
-2.040816327t + 1.041232821 + t2 = -17.14285714 + 1.041232821

Reorder the terms:
1.041232821 + -2.040816327t + t2 = -17.14285714 + 1.041232821

Combine like terms: -17.14285714 + 1.041232821 = -16.101624319
1.041232821 + -2.040816327t + t2 = -16.101624319

Factor a perfect square on the left side:
(t + -1.020408164)(t + -1.020408164) = -16.101624319

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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