5x^2-14x+18=0

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Solution for 5x^2-14x+18=0 equation:


Simplifying
5x2 + -14x + 18 = 0

Reorder the terms:
18 + -14x + 5x2 = 0

Solving
18 + -14x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
3.6 + -2.8x + x2 = 0

Move the constant term to the right:

Add '-3.6' to each side of the equation.
3.6 + -2.8x + -3.6 + x2 = 0 + -3.6

Reorder the terms:
3.6 + -3.6 + -2.8x + x2 = 0 + -3.6

Combine like terms: 3.6 + -3.6 = 0.0
0.0 + -2.8x + x2 = 0 + -3.6
-2.8x + x2 = 0 + -3.6

Combine like terms: 0 + -3.6 = -3.6
-2.8x + x2 = -3.6

The x term is -2.8x.  Take half its coefficient (-1.4).
Square it (1.96) and add it to both sides.

Add '1.96' to each side of the equation.
-2.8x + 1.96 + x2 = -3.6 + 1.96

Reorder the terms:
1.96 + -2.8x + x2 = -3.6 + 1.96

Combine like terms: -3.6 + 1.96 = -1.64
1.96 + -2.8x + x2 = -1.64

Factor a perfect square on the left side:
(x + -1.4)(x + -1.4) = -1.64

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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