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

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


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

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

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

Multiply (1 + 4x) * (-4 + x)
(1(-4 + x) + 4x * (-4 + x)) = 0
((-4 * 1 + x * 1) + 4x * (-4 + x)) = 0
((-4 + 1x) + 4x * (-4 + x)) = 0
(-4 + 1x + (-4 * 4x + x * 4x)) = 0
(-4 + 1x + (-16x + 4x2)) = 0

Combine like terms: 1x + -16x = -15x
(-4 + -15x + 4x2) = 0

Solving
-4 + -15x + 4x2 = 0

Solving for variable 'x'.

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

Solution

x = {-0.25, 4}

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