8x=5x^2+75

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Solution for 8x=5x^2+75 equation:


Simplifying
8x = 5x2 + 75

Reorder the terms:
8x = 75 + 5x2

Solving
8x = 75 + 5x2

Solving for variable 'x'.

Reorder the terms:
-75 + 8x + -5x2 = 75 + 5x2 + -75 + -5x2

Reorder the terms:
-75 + 8x + -5x2 = 75 + -75 + 5x2 + -5x2

Combine like terms: 75 + -75 = 0
-75 + 8x + -5x2 = 0 + 5x2 + -5x2
-75 + 8x + -5x2 = 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-75 + 8x + -5x2 = 0

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

Divide each side by '-5'.
15 + -1.6x + x2 = 0

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + -1.6x + -15 + x2 = 0 + -15

Reorder the terms:
15 + -15 + -1.6x + x2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -1.6x + x2 = 0 + -15
-1.6x + x2 = 0 + -15

Combine like terms: 0 + -15 = -15
-1.6x + x2 = -15

The x term is -1.6x.  Take half its coefficient (-0.8).
Square it (0.64) and add it to both sides.

Add '0.64' to each side of the equation.
-1.6x + 0.64 + x2 = -15 + 0.64

Reorder the terms:
0.64 + -1.6x + x2 = -15 + 0.64

Combine like terms: -15 + 0.64 = -14.36
0.64 + -1.6x + x2 = -14.36

Factor a perfect square on the left side:
(x + -0.8)(x + -0.8) = -14.36

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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