5z-25z^2=2

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Solution for 5z-25z^2=2 equation:


Simplifying
5z + -25z2 = 2

Solving
5z + -25z2 = 2

Solving for variable 'z'.

Reorder the terms:
-2 + 5z + -25z2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + 5z + -25z2 = 0

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

Divide each side by '-25'.
0.08 + -0.2z + z2 = 0

Move the constant term to the right:

Add '-0.08' to each side of the equation.
0.08 + -0.2z + -0.08 + z2 = 0 + -0.08

Reorder the terms:
0.08 + -0.08 + -0.2z + z2 = 0 + -0.08

Combine like terms: 0.08 + -0.08 = 0.00
0.00 + -0.2z + z2 = 0 + -0.08
-0.2z + z2 = 0 + -0.08

Combine like terms: 0 + -0.08 = -0.08
-0.2z + z2 = -0.08

The z term is -0.2z.  Take half its coefficient (-0.1).
Square it (0.01) and add it to both sides.

Add '0.01' to each side of the equation.
-0.2z + 0.01 + z2 = -0.08 + 0.01

Reorder the terms:
0.01 + -0.2z + z2 = -0.08 + 0.01

Combine like terms: -0.08 + 0.01 = -0.07
0.01 + -0.2z + z2 = -0.07

Factor a perfect square on the left side:
(z + -0.1)(z + -0.1) = -0.07

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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