5+x*x=(x+1)(x+6)

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Solution for 5+x*x=(x+1)(x+6) equation:


Simplifying
5 + x * x = (x + 1)(x + 6)

Multiply x * x
5 + x2 = (x + 1)(x + 6)

Reorder the terms:
5 + x2 = (1 + x)(x + 6)

Reorder the terms:
5 + x2 = (1 + x)(6 + x)

Multiply (1 + x) * (6 + x)
5 + x2 = (1(6 + x) + x(6 + x))
5 + x2 = ((6 * 1 + x * 1) + x(6 + x))
5 + x2 = ((6 + 1x) + x(6 + x))
5 + x2 = (6 + 1x + (6 * x + x * x))
5 + x2 = (6 + 1x + (6x + x2))

Combine like terms: 1x + 6x = 7x
5 + x2 = (6 + 7x + x2)

Add '-1x2' to each side of the equation.
5 + x2 + -1x2 = 6 + 7x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
5 + 0 = 6 + 7x + x2 + -1x2
5 = 6 + 7x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
5 = 6 + 7x + 0
5 = 6 + 7x

Solving
5 = 6 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
5 + -7x = 6 + 7x + -7x

Combine like terms: 7x + -7x = 0
5 + -7x = 6 + 0
5 + -7x = 6

Add '-5' to each side of the equation.
5 + -5 + -7x = 6 + -5

Combine like terms: 5 + -5 = 0
0 + -7x = 6 + -5
-7x = 6 + -5

Combine like terms: 6 + -5 = 1
-7x = 1

Divide each side by '-7'.
x = -0.1428571429

Simplifying
x = -0.1428571429

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