2x(2x-9x)=20

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Solution for 2x(2x-9x)=20 equation: 


Simplifying
2x(2x + -9x) = 20

Combine like terms: 2x + -9x = -7x
2x(-7x) = 20

Remove parenthesis around (-7x)
2x * -7x = 20

Reorder the terms for easier multiplication:
2 * -7x * x = 20

Multiply 2 * -7
-14x * x = 20

Multiply x * x
-14x2 = 20

Solving
-14x2 = 20

Solving for variable 'x'.

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

Divide each side by '-14'.
x2 = -1.428571429

Simplifying
x2 = -1.428571429

Reorder the terms:
1.428571429 + x2 = -1.428571429 + 1.428571429

Combine like terms: -1.428571429 + 1.428571429 = 0.000000000
1.428571429 + x2 = 0.000000000

The solution to this equation could not be determined.

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