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

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


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

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

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

Multiply (3 + 2x) * (7 + x)
(3(7 + x) + 2x * (7 + x)) = 0
((7 * 3 + x * 3) + 2x * (7 + x)) = 0
((21 + 3x) + 2x * (7 + x)) = 0
(21 + 3x + (7 * 2x + x * 2x)) = 0
(21 + 3x + (14x + 2x2)) = 0

Combine like terms: 3x + 14x = 17x
(21 + 17x + 2x2) = 0

Solving
21 + 17x + 2x2 = 0

Solving for variable 'x'.

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

Subproblem 1

Set the factor '(7 + x)' equal to zero and attempt to solve: Simplifying 7 + x = 0 Solving 7 + x = 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 + x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + x = 0 + -7 x = 0 + -7 Combine like terms: 0 + -7 = -7 x = -7 Simplifying x = -7

Subproblem 2

Set the factor '(3 + 2x)' equal to zero and attempt to solve: Simplifying 3 + 2x = 0 Solving 3 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2x = 0 + -3 2x = 0 + -3 Combine like terms: 0 + -3 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5

Solution

x = {-7, -1.5}

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