x(x+10)+216=(x+4)(x+10+4)

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Solution for x(x+10)+216=(x+4)(x+10+4) equation:


Simplifying
x(x + 10) + 216 = (x + 4)(x + 10 + 4)

Reorder the terms:
x(10 + x) + 216 = (x + 4)(x + 10 + 4)
(10 * x + x * x) + 216 = (x + 4)(x + 10 + 4)
(10x + x2) + 216 = (x + 4)(x + 10 + 4)

Reorder the terms:
216 + 10x + x2 = (x + 4)(x + 10 + 4)

Reorder the terms:
216 + 10x + x2 = (4 + x)(x + 10 + 4)

Reorder the terms:
216 + 10x + x2 = (4 + x)(10 + 4 + x)

Combine like terms: 10 + 4 = 14
216 + 10x + x2 = (4 + x)(14 + x)

Multiply (4 + x) * (14 + x)
216 + 10x + x2 = (4(14 + x) + x(14 + x))
216 + 10x + x2 = ((14 * 4 + x * 4) + x(14 + x))
216 + 10x + x2 = ((56 + 4x) + x(14 + x))
216 + 10x + x2 = (56 + 4x + (14 * x + x * x))
216 + 10x + x2 = (56 + 4x + (14x + x2))

Combine like terms: 4x + 14x = 18x
216 + 10x + x2 = (56 + 18x + x2)

Add '-1x2' to each side of the equation.
216 + 10x + x2 + -1x2 = 56 + 18x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
216 + 10x + 0 = 56 + 18x + x2 + -1x2
216 + 10x = 56 + 18x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
216 + 10x = 56 + 18x + 0
216 + 10x = 56 + 18x

Solving
216 + 10x = 56 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
216 + 10x + -18x = 56 + 18x + -18x

Combine like terms: 10x + -18x = -8x
216 + -8x = 56 + 18x + -18x

Combine like terms: 18x + -18x = 0
216 + -8x = 56 + 0
216 + -8x = 56

Add '-216' to each side of the equation.
216 + -216 + -8x = 56 + -216

Combine like terms: 216 + -216 = 0
0 + -8x = 56 + -216
-8x = 56 + -216

Combine like terms: 56 + -216 = -160
-8x = -160

Divide each side by '-8'.
x = 20

Simplifying
x = 20

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