(x-2)(2x^2-1x-21)=0

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Solution for (x-2)(2x^2-1x-21)=0 equation:


Simplifying
(x + -2)(2x2 + -1x + -21) = 0

Reorder the terms:
(-2 + x)(2x2 + -1x + -21) = 0

Reorder the terms:
(-2 + x)(-21 + -1x + 2x2) = 0

Multiply (-2 + x) * (-21 + -1x + 2x2)
(-2(-21 + -1x + 2x2) + x(-21 + -1x + 2x2)) = 0
((-21 * -2 + -1x * -2 + 2x2 * -2) + x(-21 + -1x + 2x2)) = 0
((42 + 2x + -4x2) + x(-21 + -1x + 2x2)) = 0
(42 + 2x + -4x2 + (-21 * x + -1x * x + 2x2 * x)) = 0
(42 + 2x + -4x2 + (-21x + -1x2 + 2x3)) = 0

Reorder the terms:
(42 + 2x + -21x + -4x2 + -1x2 + 2x3) = 0

Combine like terms: 2x + -21x = -19x
(42 + -19x + -4x2 + -1x2 + 2x3) = 0

Combine like terms: -4x2 + -1x2 = -5x2
(42 + -19x + -5x2 + 2x3) = 0

Solving
42 + -19x + -5x2 + 2x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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