25x^2+15x+4=0

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Solution for 25x^2+15x+4=0 equation:


Simplifying
25x2 + 15x + 4 = 0

Reorder the terms:
4 + 15x + 25x2 = 0

Solving
4 + 15x + 25x2 = 0

Solving for variable 'x'.

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

Divide each side by '25'.
0.16 + 0.6x + x2 = 0

Move the constant term to the right:

Add '-0.16' to each side of the equation.
0.16 + 0.6x + -0.16 + x2 = 0 + -0.16

Reorder the terms:
0.16 + -0.16 + 0.6x + x2 = 0 + -0.16

Combine like terms: 0.16 + -0.16 = 0.00
0.00 + 0.6x + x2 = 0 + -0.16
0.6x + x2 = 0 + -0.16

Combine like terms: 0 + -0.16 = -0.16
0.6x + x2 = -0.16

The x term is 0.6x.  Take half its coefficient (0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
0.6x + 0.09 + x2 = -0.16 + 0.09

Reorder the terms:
0.09 + 0.6x + x2 = -0.16 + 0.09

Combine like terms: -0.16 + 0.09 = -0.07
0.09 + 0.6x + x2 = -0.07

Factor a perfect square on the left side:
(x + 0.3)(x + 0.3) = -0.07

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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