(21-2x)*(29.7-2x)*x=1000

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Solution for (21-2x)*(29.7-2x)*x=1000 equation: 


Simplifying
(21 + -2x)(29.7 + -2x) * x = 1000

Reorder the terms for easier multiplication:
x(21 + -2x)(29.7 + -2x) = 1000

Multiply (21 + -2x) * (29.7 + -2x)
x(21(29.7 + -2x) + -2x * (29.7 + -2x)) = 1000
x((29.7 * 21 + -2x * 21) + -2x * (29.7 + -2x)) = 1000
x((623.7 + -42x) + -2x * (29.7 + -2x)) = 1000
x(623.7 + -42x + (29.7 * -2x + -2x * -2x)) = 1000
x(623.7 + -42x + (-59.4x + 4x2)) = 1000

Combine like terms: -42x + -59.4x = -101.4x
x(623.7 + -101.4x + 4x2) = 1000
(623.7 * x + -101.4x * x + 4x2 * x) = 1000
(623.7x + -101.4x2 + 4x3) = 1000

Solving
623.7x + -101.4x2 + 4x3 = 1000

Solving for variable 'x'.

Reorder the terms:
-1000 + 623.7x + -101.4x2 + 4x3 = 1000 + -1000

Combine like terms: 1000 + -1000 = 0
-1000 + 623.7x + -101.4x2 + 4x3 = 0

The solution to this equation could not be determined.

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