(2x+1)(2x+1)=4x*x-1

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Solution for (2x+1)(2x+1)=4x*x-1 equation:


Simplifying
(2x + 1)(2x + 1) = 4x * x + -1

Reorder the terms:
(1 + 2x)(2x + 1) = 4x * x + -1

Reorder the terms:
(1 + 2x)(1 + 2x) = 4x * x + -1

Multiply (1 + 2x) * (1 + 2x)
(1(1 + 2x) + 2x * (1 + 2x)) = 4x * x + -1
((1 * 1 + 2x * 1) + 2x * (1 + 2x)) = 4x * x + -1
((1 + 2x) + 2x * (1 + 2x)) = 4x * x + -1
(1 + 2x + (1 * 2x + 2x * 2x)) = 4x * x + -1
(1 + 2x + (2x + 4x2)) = 4x * x + -1

Combine like terms: 2x + 2x = 4x
(1 + 4x + 4x2) = 4x * x + -1

Multiply x * x
1 + 4x + 4x2 = 4x2 + -1

Reorder the terms:
1 + 4x + 4x2 = -1 + 4x2

Add '-4x2' to each side of the equation.
1 + 4x + 4x2 + -4x2 = -1 + 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
1 + 4x + 0 = -1 + 4x2 + -4x2
1 + 4x = -1 + 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
1 + 4x = -1 + 0
1 + 4x = -1

Solving
1 + 4x = -1

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 4x = -1 + -1

Combine like terms: 1 + -1 = 0
0 + 4x = -1 + -1
4x = -1 + -1

Combine like terms: -1 + -1 = -2
4x = -2

Divide each side by '4'.
x = -0.5

Simplifying
x = -0.5

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