u(u+5)+8u=u(u+2)-4

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Solution for u(u+5)+8u=u(u+2)-4 equation:


Simplifying
u(u + 5) + 8u = u(u + 2) + -4

Reorder the terms:
u(5 + u) + 8u = u(u + 2) + -4
(5 * u + u * u) + 8u = u(u + 2) + -4
(5u + u2) + 8u = u(u + 2) + -4

Reorder the terms:
5u + 8u + u2 = u(u + 2) + -4

Combine like terms: 5u + 8u = 13u
13u + u2 = u(u + 2) + -4

Reorder the terms:
13u + u2 = u(2 + u) + -4
13u + u2 = (2 * u + u * u) + -4
13u + u2 = (2u + u2) + -4

Reorder the terms:
13u + u2 = -4 + 2u + u2

Add '-1u2' to each side of the equation.
13u + u2 + -1u2 = -4 + 2u + u2 + -1u2

Combine like terms: u2 + -1u2 = 0
13u + 0 = -4 + 2u + u2 + -1u2
13u = -4 + 2u + u2 + -1u2

Combine like terms: u2 + -1u2 = 0
13u = -4 + 2u + 0
13u = -4 + 2u

Solving
13u = -4 + 2u

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '-2u' to each side of the equation.
13u + -2u = -4 + 2u + -2u

Combine like terms: 13u + -2u = 11u
11u = -4 + 2u + -2u

Combine like terms: 2u + -2u = 0
11u = -4 + 0
11u = -4

Divide each side by '11'.
u = -0.3636363636

Simplifying
u = -0.3636363636

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