(2x)(11x+4)=840

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Solution for (2x)(11x+4)=840 equation:


Simplifying
(2x)(11x + 4) = 840

Remove parenthesis around (2x)
2x(11x + 4) = 840

Reorder the terms:
2x(4 + 11x) = 840
(4 * 2x + 11x * 2x) = 840
(8x + 22x2) = 840

Solving
8x + 22x2 = 840

Solving for variable 'x'.

Reorder the terms:
-840 + 8x + 22x2 = 840 + -840

Combine like terms: 840 + -840 = 0
-840 + 8x + 22x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-420 + 4x + 11x2) = 0

Factor a trinomial.
2((-70 + -11x)(6 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-70 + -11x)' equal to zero and attempt to solve: Simplifying -70 + -11x = 0 Solving -70 + -11x = 0 Move all terms containing x to the left, all other terms to the right. Add '70' to each side of the equation. -70 + 70 + -11x = 0 + 70 Combine like terms: -70 + 70 = 0 0 + -11x = 0 + 70 -11x = 0 + 70 Combine like terms: 0 + 70 = 70 -11x = 70 Divide each side by '-11'. x = -6.363636364 Simplifying x = -6.363636364

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {-6.363636364, 6}

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