(8x-7)(4x+1)=

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Solution for (8x-7)(4x+1)= equation:


Simplifying
(8x + -7)(4x + 1) = 0

Reorder the terms:
(-7 + 8x)(4x + 1) = 0

Reorder the terms:
(-7 + 8x)(1 + 4x) = 0

Multiply (-7 + 8x) * (1 + 4x)
(-7(1 + 4x) + 8x * (1 + 4x)) = 0
((1 * -7 + 4x * -7) + 8x * (1 + 4x)) = 0
((-7 + -28x) + 8x * (1 + 4x)) = 0
(-7 + -28x + (1 * 8x + 4x * 8x)) = 0
(-7 + -28x + (8x + 32x2)) = 0

Combine like terms: -28x + 8x = -20x
(-7 + -20x + 32x2) = 0

Solving
-7 + -20x + 32x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-1 + -4x)(7 + -8x) = 0

Subproblem 1

Set the factor '(-1 + -4x)' equal to zero and attempt to solve: Simplifying -1 + -4x = 0 Solving -1 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -4x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -4x = 0 + 1 -4x = 0 + 1 Combine like terms: 0 + 1 = 1 -4x = 1 Divide each side by '-4'. x = -0.25 Simplifying x = -0.25

Subproblem 2

Set the factor '(7 + -8x)' equal to zero and attempt to solve: Simplifying 7 + -8x = 0 Solving 7 + -8x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -8x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -8x = 0 + -7 -8x = 0 + -7 Combine like terms: 0 + -7 = -7 -8x = -7 Divide each side by '-8'. x = 0.875 Simplifying x = 0.875

Solution

x = {-0.25, 0.875}

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