140=4x^2-4+4-16

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Solution for 140=4x^2-4+4-16 equation: 


Simplifying
140 = 4x2 + -4 + 4 + -16

Reorder the terms:
140 = -4 + 4 + -16 + 4x2

Combine like terms: -4 + 4 = 0
140 = 0 + -16 + 4x2
140 = -16 + 4x2

Solving
140 = -16 + 4x2

Solving for variable 'x'.

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

Add '-4x2' to each side of the equation.
140 + -4x2 = -16 + 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
140 + -4x2 = -16 + 0
140 + -4x2 = -16

Add '-140' to each side of the equation.
140 + -140 + -4x2 = -16 + -140

Combine like terms: 140 + -140 = 0
0 + -4x2 = -16 + -140
-4x2 = -16 + -140

Combine like terms: -16 + -140 = -156
-4x2 = -156

Divide each side by '-4'.
x2 = 39

Simplifying
x2 = 39

Take the square root of each side:
x = {-6.244997998, 6.244997998}

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