(7x-5)(-8x-3)=0

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Solution for (7x-5)(-8x-3)=0 equation:


Simplifying
(7x + -5)(-8x + -3) = 0

Reorder the terms:
(-5 + 7x)(-8x + -3) = 0

Reorder the terms:
(-5 + 7x)(-3 + -8x) = 0

Multiply (-5 + 7x) * (-3 + -8x)
(-5(-3 + -8x) + 7x * (-3 + -8x)) = 0
((-3 * -5 + -8x * -5) + 7x * (-3 + -8x)) = 0
((15 + 40x) + 7x * (-3 + -8x)) = 0
(15 + 40x + (-3 * 7x + -8x * 7x)) = 0
(15 + 40x + (-21x + -56x2)) = 0

Combine like terms: 40x + -21x = 19x
(15 + 19x + -56x2) = 0

Solving
15 + 19x + -56x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(5 + -7x)(3 + 8x) = 0

Subproblem 1

Set the factor '(5 + -7x)' equal to zero and attempt to solve: Simplifying 5 + -7x = 0 Solving 5 + -7x = 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 + -7x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -7x = 0 + -5 -7x = 0 + -5 Combine like terms: 0 + -5 = -5 -7x = -5 Divide each side by '-7'. x = 0.7142857143 Simplifying x = 0.7142857143

Subproblem 2

Set the factor '(3 + 8x)' equal to zero and attempt to solve: Simplifying 3 + 8x = 0 Solving 3 + 8x = 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 + 8x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 8x = 0 + -3 8x = 0 + -3 Combine like terms: 0 + -3 = -3 8x = -3 Divide each side by '8'. x = -0.375 Simplifying x = -0.375

Solution

x = {0.7142857143, -0.375}

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