X(7x+8)=2x^2-21x+42

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Solution for X(7x+8)=2x^2-21x+42 equation:


Simplifying
X(7x + 8) = 2x2 + -21x + 42

Reorder the terms:
X(8 + 7x) = 2x2 + -21x + 42
(8 * X + 7x * X) = 2x2 + -21x + 42
(8X + 7xX) = 2x2 + -21x + 42

Reorder the terms:
8X + 7xX = 42 + -21x + 2x2

Solving
8X + 7xX = 42 + -21x + 2x2

Solving for variable 'X'.

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

Reorder the terms:
-42 + 8X + 21x + 7xX + -2x2 = 42 + -21x + 2x2 + -42 + 21x + -2x2

Reorder the terms:
-42 + 8X + 21x + 7xX + -2x2 = 42 + -42 + -21x + 21x + 2x2 + -2x2

Combine like terms: 42 + -42 = 0
-42 + 8X + 21x + 7xX + -2x2 = 0 + -21x + 21x + 2x2 + -2x2
-42 + 8X + 21x + 7xX + -2x2 = -21x + 21x + 2x2 + -2x2

Combine like terms: -21x + 21x = 0
-42 + 8X + 21x + 7xX + -2x2 = 0 + 2x2 + -2x2
-42 + 8X + 21x + 7xX + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-42 + 8X + 21x + 7xX + -2x2 = 0

The solution to this equation could not be determined.

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