2x(2x+2)-(4x^2+20x+25)=4

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Solution for 2x(2x+2)-(4x^2+20x+25)=4 equation:


Simplifying
2x(2x + 2) + -1(4x2 + 20x + 25) = 4

Reorder the terms:
2x(2 + 2x) + -1(4x2 + 20x + 25) = 4
(2 * 2x + 2x * 2x) + -1(4x2 + 20x + 25) = 4
(4x + 4x2) + -1(4x2 + 20x + 25) = 4

Reorder the terms:
4x + 4x2 + -1(25 + 20x + 4x2) = 4
4x + 4x2 + (25 * -1 + 20x * -1 + 4x2 * -1) = 4
4x + 4x2 + (-25 + -20x + -4x2) = 4

Reorder the terms:
-25 + 4x + -20x + 4x2 + -4x2 = 4

Combine like terms: 4x + -20x = -16x
-25 + -16x + 4x2 + -4x2 = 4

Combine like terms: 4x2 + -4x2 = 0
-25 + -16x + 0 = 4
-25 + -16x = 4

Solving
-25 + -16x = 4

Solving for variable 'x'.

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

Add '25' to each side of the equation.
-25 + 25 + -16x = 4 + 25

Combine like terms: -25 + 25 = 0
0 + -16x = 4 + 25
-16x = 4 + 25

Combine like terms: 4 + 25 = 29
-16x = 29

Divide each side by '-16'.
x = -1.8125

Simplifying
x = -1.8125

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