4.9x^2+7.6x+25=0

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Solution for 4.9x^2+7.6x+25=0 equation: 


Simplifying
4.9x2 + 7.6x + 25 = 0

Reorder the terms:
25 + 7.6x + 4.9x2 = 0

Solving
25 + 7.6x + 4.9x2 = 0

Solving for variable 'x'.

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

Divide each side by '4.9'.
5.102040816 + 1.551020408x + x2 = 0

Move the constant term to the right:

Add '-5.102040816' to each side of the equation.
5.102040816 + 1.551020408x + -5.102040816 + x2 = 0 + -5.102040816

Reorder the terms:
5.102040816 + -5.102040816 + 1.551020408x + x2 = 0 + -5.102040816

Combine like terms: 5.102040816 + -5.102040816 = 0.000000000
0.000000000 + 1.551020408x + x2 = 0 + -5.102040816
1.551020408x + x2 = 0 + -5.102040816

Combine like terms: 0 + -5.102040816 = -5.102040816
1.551020408x + x2 = -5.102040816

The x term is 1.551020408x.  Take half its coefficient (0.775510204).
Square it (0.6014160765) and add it to both sides.

Add '0.6014160765' to each side of the equation.
1.551020408x + 0.6014160765 + x2 = -5.102040816 + 0.6014160765

Reorder the terms:
0.6014160765 + 1.551020408x + x2 = -5.102040816 + 0.6014160765

Combine like terms: -5.102040816 + 0.6014160765 = -4.5006247395
0.6014160765 + 1.551020408x + x2 = -4.5006247395

Factor a perfect square on the left side:
(x + 0.775510204)(x + 0.775510204) = -4.5006247395

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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