2=-10x+25x^2+20

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Solution for 2=-10x+25x^2+20 equation:


Simplifying
2 = -10x + 25x2 + 20

Reorder the terms:
2 = 20 + -10x + 25x2

Solving
2 = 20 + -10x + 25x2

Solving for variable 'x'.

Combine like terms: 2 + -20 = -18
-18 + 10x + -25x2 = 20 + -10x + 25x2 + -20 + 10x + -25x2

Reorder the terms:
-18 + 10x + -25x2 = 20 + -20 + -10x + 10x + 25x2 + -25x2

Combine like terms: 20 + -20 = 0
-18 + 10x + -25x2 = 0 + -10x + 10x + 25x2 + -25x2
-18 + 10x + -25x2 = -10x + 10x + 25x2 + -25x2

Combine like terms: -10x + 10x = 0
-18 + 10x + -25x2 = 0 + 25x2 + -25x2
-18 + 10x + -25x2 = 25x2 + -25x2

Combine like terms: 25x2 + -25x2 = 0
-18 + 10x + -25x2 = 0

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

Divide each side by '-25'.
0.72 + -0.4x + x2 = 0

Move the constant term to the right:

Add '-0.72' to each side of the equation.
0.72 + -0.4x + -0.72 + x2 = 0 + -0.72

Reorder the terms:
0.72 + -0.72 + -0.4x + x2 = 0 + -0.72

Combine like terms: 0.72 + -0.72 = 0.00
0.00 + -0.4x + x2 = 0 + -0.72
-0.4x + x2 = 0 + -0.72

Combine like terms: 0 + -0.72 = -0.72
-0.4x + x2 = -0.72

The x term is -0.4x.  Take half its coefficient (-0.2).
Square it (0.04) and add it to both sides.

Add '0.04' to each side of the equation.
-0.4x + 0.04 + x2 = -0.72 + 0.04

Reorder the terms:
0.04 + -0.4x + x2 = -0.72 + 0.04

Combine like terms: -0.72 + 0.04 = -0.68
0.04 + -0.4x + x2 = -0.68

Factor a perfect square on the left side:
(x + -0.2)(x + -0.2) = -0.68

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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