(5x+3)(7x+1)=0

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Solution for (5x+3)(7x+1)=0 equation:


Simplifying
(5x + 3)(7x + 1) = 0

Reorder the terms:
(3 + 5x)(7x + 1) = 0

Reorder the terms:
(3 + 5x)(1 + 7x) = 0

Multiply (3 + 5x) * (1 + 7x)
(3(1 + 7x) + 5x * (1 + 7x)) = 0
((1 * 3 + 7x * 3) + 5x * (1 + 7x)) = 0
((3 + 21x) + 5x * (1 + 7x)) = 0
(3 + 21x + (1 * 5x + 7x * 5x)) = 0
(3 + 21x + (5x + 35x2)) = 0

Combine like terms: 21x + 5x = 26x
(3 + 26x + 35x2) = 0

Solving
3 + 26x + 35x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(3 + 5x)(1 + 7x) = 0

Subproblem 1

Set the factor '(3 + 5x)' equal to zero and attempt to solve: Simplifying 3 + 5x = 0 Solving 3 + 5x = 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 + 5x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 5x = 0 + -3 5x = 0 + -3 Combine like terms: 0 + -3 = -3 5x = -3 Divide each side by '5'. x = -0.6 Simplifying x = -0.6

Subproblem 2

Set the factor '(1 + 7x)' equal to zero and attempt to solve: Simplifying 1 + 7x = 0 Solving 1 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 7x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 7x = 0 + -1 7x = 0 + -1 Combine like terms: 0 + -1 = -1 7x = -1 Divide each side by '7'. x = -0.1428571429 Simplifying x = -0.1428571429

Solution

x = {-0.6, -0.1428571429}

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