(x+2)(x+8)=5x

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Solution for (x+2)(x+8)=5x equation:


Simplifying
(x + 2)(x + 8) = 5x

Reorder the terms:
(2 + x)(x + 8) = 5x

Reorder the terms:
(2 + x)(8 + x) = 5x

Multiply (2 + x) * (8 + x)
(2(8 + x) + x(8 + x)) = 5x
((8 * 2 + x * 2) + x(8 + x)) = 5x
((16 + 2x) + x(8 + x)) = 5x
(16 + 2x + (8 * x + x * x)) = 5x
(16 + 2x + (8x + x2)) = 5x

Combine like terms: 2x + 8x = 10x
(16 + 10x + x2) = 5x

Solving
16 + 10x + x2 = 5x

Solving for variable 'x'.

Reorder the terms:
16 + 10x + -5x + x2 = 5x + -5x

Combine like terms: 10x + -5x = 5x
16 + 5x + x2 = 5x + -5x

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

Begin completing the square.

Move the constant term to the right:

Add '-16' to each side of the equation.
16 + 5x + -16 + x2 = 0 + -16

Reorder the terms:
16 + -16 + 5x + x2 = 0 + -16

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

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

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = -16 + 6.25

Reorder the terms:
6.25 + 5x + x2 = -16 + 6.25

Combine like terms: -16 + 6.25 = -9.75
6.25 + 5x + x2 = -9.75

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = -9.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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