(4x+7)(x+3)=0

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Solution for (4x+7)(x+3)=0 equation:


Simplifying
(4x + 7)(x + 3) = 0

Reorder the terms:
(7 + 4x)(x + 3) = 0

Reorder the terms:
(7 + 4x)(3 + x) = 0

Multiply (7 + 4x) * (3 + x)
(7(3 + x) + 4x * (3 + x)) = 0
((3 * 7 + x * 7) + 4x * (3 + x)) = 0
((21 + 7x) + 4x * (3 + x)) = 0
(21 + 7x + (3 * 4x + x * 4x)) = 0
(21 + 7x + (12x + 4x2)) = 0

Combine like terms: 7x + 12x = 19x
(21 + 19x + 4x2) = 0

Solving
21 + 19x + 4x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(3 + x)(7 + 4x) = 0

Subproblem 1

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 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 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(7 + 4x)' equal to zero and attempt to solve: Simplifying 7 + 4x = 0 Solving 7 + 4x = 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 + 4x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 4x = 0 + -7 4x = 0 + -7 Combine like terms: 0 + -7 = -7 4x = -7 Divide each side by '4'. x = -1.75 Simplifying x = -1.75

Solution

x = {-3, -1.75}

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