(2x+3)(x+5)=(x-3)2

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Solution for (2x+3)(x+5)=(x-3)2 equation:


Simplifying
(2x + 3)(x + 5) = (x + -3) * 2

Reorder the terms:
(3 + 2x)(x + 5) = (x + -3) * 2

Reorder the terms:
(3 + 2x)(5 + x) = (x + -3) * 2

Multiply (3 + 2x) * (5 + x)
(3(5 + x) + 2x * (5 + x)) = (x + -3) * 2
((5 * 3 + x * 3) + 2x * (5 + x)) = (x + -3) * 2
((15 + 3x) + 2x * (5 + x)) = (x + -3) * 2
(15 + 3x + (5 * 2x + x * 2x)) = (x + -3) * 2
(15 + 3x + (10x + 2x2)) = (x + -3) * 2

Combine like terms: 3x + 10x = 13x
(15 + 13x + 2x2) = (x + -3) * 2

Reorder the terms:
15 + 13x + 2x2 = (-3 + x) * 2

Reorder the terms for easier multiplication:
15 + 13x + 2x2 = 2(-3 + x)
15 + 13x + 2x2 = (-3 * 2 + x * 2)
15 + 13x + 2x2 = (-6 + 2x)

Solving
15 + 13x + 2x2 = -6 + 2x

Solving for variable 'x'.

Reorder the terms:
15 + 6 + 13x + -2x + 2x2 = -6 + 2x + 6 + -2x

Combine like terms: 15 + 6 = 21
21 + 13x + -2x + 2x2 = -6 + 2x + 6 + -2x

Combine like terms: 13x + -2x = 11x
21 + 11x + 2x2 = -6 + 2x + 6 + -2x

Reorder the terms:
21 + 11x + 2x2 = -6 + 6 + 2x + -2x

Combine like terms: -6 + 6 = 0
21 + 11x + 2x2 = 0 + 2x + -2x
21 + 11x + 2x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
21 + 11x + 2x2 = 0

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
10.5 + 5.5x + x2 = 0

Move the constant term to the right:

Add '-10.5' to each side of the equation.
10.5 + 5.5x + -10.5 + x2 = 0 + -10.5

Reorder the terms:
10.5 + -10.5 + 5.5x + x2 = 0 + -10.5

Combine like terms: 10.5 + -10.5 = 0.0
0.0 + 5.5x + x2 = 0 + -10.5
5.5x + x2 = 0 + -10.5

Combine like terms: 0 + -10.5 = -10.5
5.5x + x2 = -10.5

The x term is 5.5x.  Take half its coefficient (2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
5.5x + 7.5625 + x2 = -10.5 + 7.5625

Reorder the terms:
7.5625 + 5.5x + x2 = -10.5 + 7.5625

Combine like terms: -10.5 + 7.5625 = -2.9375
7.5625 + 5.5x + x2 = -2.9375

Factor a perfect square on the left side:
(x + 2.75)(x + 2.75) = -2.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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