2(x)2-5(x)-4=0

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Solution for 2(x)2-5(x)-4=0 equation:


Simplifying
2(x) * 2 + -5(x) + -4 = 0

Reorder the terms for easier multiplication:
2 * 2x + -5(x) + -4 = 0

Multiply 2 * 2
4x + -5(x) + -4 = 0

Reorder the terms:
-4 + 4x + -5x = 0

Combine like terms: 4x + -5x = -1x
-4 + -1x = 0

Solving
-4 + -1x = 0

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + -1x = 0 + 4

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

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

Divide each side by '-1'.
x = -4

Simplifying
x = -4

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