5x^2=-13+16x

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Solution for 5x^2=-13+16x equation:


Simplifying
5x2 = -13 + 16x

Solving
5x2 = -13 + 16x

Solving for variable 'x'.

Reorder the terms:
13 + -16x + 5x2 = -13 + 16x + 13 + -16x

Reorder the terms:
13 + -16x + 5x2 = -13 + 13 + 16x + -16x

Combine like terms: -13 + 13 = 0
13 + -16x + 5x2 = 0 + 16x + -16x
13 + -16x + 5x2 = 16x + -16x

Combine like terms: 16x + -16x = 0
13 + -16x + 5x2 = 0

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

Divide each side by '5'.
2.6 + -3.2x + x2 = 0

Move the constant term to the right:

Add '-2.6' to each side of the equation.
2.6 + -3.2x + -2.6 + x2 = 0 + -2.6

Reorder the terms:
2.6 + -2.6 + -3.2x + x2 = 0 + -2.6

Combine like terms: 2.6 + -2.6 = 0.0
0.0 + -3.2x + x2 = 0 + -2.6
-3.2x + x2 = 0 + -2.6

Combine like terms: 0 + -2.6 = -2.6
-3.2x + x2 = -2.6

The x term is -3.2x.  Take half its coefficient (-1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
-3.2x + 2.56 + x2 = -2.6 + 2.56

Reorder the terms:
2.56 + -3.2x + x2 = -2.6 + 2.56

Combine like terms: -2.6 + 2.56 = -0.04
2.56 + -3.2x + x2 = -0.04

Factor a perfect square on the left side:
(x + -1.6)(x + -1.6) = -0.04

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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