(2x+5)(8x-3)=0

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Solution for (2x+5)(8x-3)=0 equation:


Simplifying
(2x + 5)(8x + -3) = 0

Reorder the terms:
(5 + 2x)(8x + -3) = 0

Reorder the terms:
(5 + 2x)(-3 + 8x) = 0

Multiply (5 + 2x) * (-3 + 8x)
(5(-3 + 8x) + 2x * (-3 + 8x)) = 0
((-3 * 5 + 8x * 5) + 2x * (-3 + 8x)) = 0
((-15 + 40x) + 2x * (-3 + 8x)) = 0
(-15 + 40x + (-3 * 2x + 8x * 2x)) = 0
(-15 + 40x + (-6x + 16x2)) = 0

Combine like terms: 40x + -6x = 34x
(-15 + 34x + 16x2) = 0

Solving
-15 + 34x + 16x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -2x)(3 + -8x) = 0

Subproblem 1

Set the factor '(-5 + -2x)' equal to zero and attempt to solve: Simplifying -5 + -2x = 0 Solving -5 + -2x = 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 + -2x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -2x = 0 + 5 -2x = 0 + 5 Combine like terms: 0 + 5 = 5 -2x = 5 Divide each side by '-2'. x = -2.5 Simplifying x = -2.5

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 = {-2.5, 0.375}

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