(2x+7)(3x+20)=0

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Solution for (2x+7)(3x+20)=0 equation:


Simplifying
(2x + 7)(3x + 20) = 0

Reorder the terms:
(7 + 2x)(3x + 20) = 0

Reorder the terms:
(7 + 2x)(20 + 3x) = 0

Multiply (7 + 2x) * (20 + 3x)
(7(20 + 3x) + 2x * (20 + 3x)) = 0
((20 * 7 + 3x * 7) + 2x * (20 + 3x)) = 0
((140 + 21x) + 2x * (20 + 3x)) = 0
(140 + 21x + (20 * 2x + 3x * 2x)) = 0
(140 + 21x + (40x + 6x2)) = 0

Combine like terms: 21x + 40x = 61x
(140 + 61x + 6x2) = 0

Solving
140 + 61x + 6x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(20 + 3x)(7 + 2x) = 0

Subproblem 1

Set the factor '(20 + 3x)' equal to zero and attempt to solve: Simplifying 20 + 3x = 0 Solving 20 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + 3x = 0 + -20 Combine like terms: 20 + -20 = 0 0 + 3x = 0 + -20 3x = 0 + -20 Combine like terms: 0 + -20 = -20 3x = -20 Divide each side by '3'. x = -6.666666667 Simplifying x = -6.666666667

Subproblem 2

Set the factor '(7 + 2x)' equal to zero and attempt to solve: Simplifying 7 + 2x = 0 Solving 7 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 2x = 0 + -7 2x = 0 + -7 Combine like terms: 0 + -7 = -7 2x = -7 Divide each side by '2'. x = -3.5 Simplifying x = -3.5

Solution

x = {-6.666666667, -3.5}

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