(8x-3)(4x+5)=0

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Solution for (8x-3)(4x+5)=0 equation:


Simplifying
(8x + -3)(4x + 5) = 0

Reorder the terms:
(-3 + 8x)(4x + 5) = 0

Reorder the terms:
(-3 + 8x)(5 + 4x) = 0

Multiply (-3 + 8x) * (5 + 4x)
(-3(5 + 4x) + 8x * (5 + 4x)) = 0
((5 * -3 + 4x * -3) + 8x * (5 + 4x)) = 0
((-15 + -12x) + 8x * (5 + 4x)) = 0
(-15 + -12x + (5 * 8x + 4x * 8x)) = 0
(-15 + -12x + (40x + 32x2)) = 0

Combine like terms: -12x + 40x = 28x
(-15 + 28x + 32x2) = 0

Solving
-15 + 28x + 32x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -4x)(3 + -8x) = 0

Subproblem 1

Set the factor '(-5 + -4x)' equal to zero and attempt to solve: Simplifying -5 + -4x = 0 Solving -5 + -4x = 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 + -4x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -4x = 0 + 5 -4x = 0 + 5 Combine like terms: 0 + 5 = 5 -4x = 5 Divide each side by '-4'. x = -1.25 Simplifying x = -1.25

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 = {-1.25, 0.375}

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