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

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


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

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

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

Multiply (-3 + 4x) * (5 + x)
(-3(5 + x) + 4x * (5 + x)) = 0
((5 * -3 + x * -3) + 4x * (5 + x)) = 0
((-15 + -3x) + 4x * (5 + x)) = 0
(-15 + -3x + (5 * 4x + x * 4x)) = 0
(-15 + -3x + (20x + 4x2)) = 0

Combine like terms: -3x + 20x = 17x
(-15 + 17x + 4x2) = 0

Solving
-15 + 17x + 4x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -1x)(3 + -4x) = 0

Subproblem 1

Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 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 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5

Subproblem 2

Set the factor '(3 + -4x)' equal to zero and attempt to solve: Simplifying 3 + -4x = 0 Solving 3 + -4x = 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 + -4x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4x = 0 + -3 -4x = 0 + -3 Combine like terms: 0 + -3 = -3 -4x = -3 Divide each side by '-4'. x = 0.75 Simplifying x = 0.75

Solution

x = {-5, 0.75}

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