v^2+12v+20=(v+10)(v+4)

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Solution for v^2+12v+20=(v+10)(v+4) equation:


Simplifying
v2 + 12v + 20 = (v + 10)(v + 4)

Reorder the terms:
20 + 12v + v2 = (v + 10)(v + 4)

Reorder the terms:
20 + 12v + v2 = (10 + v)(v + 4)

Reorder the terms:
20 + 12v + v2 = (10 + v)(4 + v)

Multiply (10 + v) * (4 + v)
20 + 12v + v2 = (10(4 + v) + v(4 + v))
20 + 12v + v2 = ((4 * 10 + v * 10) + v(4 + v))
20 + 12v + v2 = ((40 + 10v) + v(4 + v))
20 + 12v + v2 = (40 + 10v + (4 * v + v * v))
20 + 12v + v2 = (40 + 10v + (4v + v2))

Combine like terms: 10v + 4v = 14v
20 + 12v + v2 = (40 + 14v + v2)

Add '-1v2' to each side of the equation.
20 + 12v + v2 + -1v2 = 40 + 14v + v2 + -1v2

Combine like terms: v2 + -1v2 = 0
20 + 12v + 0 = 40 + 14v + v2 + -1v2
20 + 12v = 40 + 14v + v2 + -1v2

Combine like terms: v2 + -1v2 = 0
20 + 12v = 40 + 14v + 0
20 + 12v = 40 + 14v

Solving
20 + 12v = 40 + 14v

Solving for variable 'v'.

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

Add '-14v' to each side of the equation.
20 + 12v + -14v = 40 + 14v + -14v

Combine like terms: 12v + -14v = -2v
20 + -2v = 40 + 14v + -14v

Combine like terms: 14v + -14v = 0
20 + -2v = 40 + 0
20 + -2v = 40

Add '-20' to each side of the equation.
20 + -20 + -2v = 40 + -20

Combine like terms: 20 + -20 = 0
0 + -2v = 40 + -20
-2v = 40 + -20

Combine like terms: 40 + -20 = 20
-2v = 20

Divide each side by '-2'.
v = -10

Simplifying
v = -10

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