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

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


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

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

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

Multiply (5 + 3x) * (-3 + 7x)
(5(-3 + 7x) + 3x * (-3 + 7x)) = 0
((-3 * 5 + 7x * 5) + 3x * (-3 + 7x)) = 0
((-15 + 35x) + 3x * (-3 + 7x)) = 0
(-15 + 35x + (-3 * 3x + 7x * 3x)) = 0
(-15 + 35x + (-9x + 21x2)) = 0

Combine like terms: 35x + -9x = 26x
(-15 + 26x + 21x2) = 0

Solving
-15 + 26x + 21x2 = 0

Solving for variable 'x'.

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

Subproblem 1

Set the factor '(-5 + -3x)' equal to zero and attempt to solve: Simplifying -5 + -3x = 0 Solving -5 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -3x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -3x = 0 + 5 -3x = 0 + 5 Combine like terms: 0 + 5 = 5 -3x = 5 Divide each side by '-3'. x = -1.666666667 Simplifying x = -1.666666667

Subproblem 2

Set the factor '(3 + -7x)' equal to zero and attempt to solve: Simplifying 3 + -7x = 0 Solving 3 + -7x = 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 + -7x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -7x = 0 + -3 -7x = 0 + -3 Combine like terms: 0 + -3 = -3 -7x = -3 Divide each side by '-7'. x = 0.4285714286 Simplifying x = 0.4285714286

Solution

x = {-1.666666667, 0.4285714286}

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