4(2x+1)(x-7)=

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Solution for 4(2x+1)(x-7)= equation: 


Simplifying
4(2x + 1)(x + -7) = 0

Reorder the terms:
4(1 + 2x)(x + -7) = 0

Reorder the terms:
4(1 + 2x)(-7 + x) = 0

Multiply (1 + 2x) * (-7 + x)
4(1(-7 + x) + 2x * (-7 + x)) = 0
4((-7 * 1 + x * 1) + 2x * (-7 + x)) = 0
4((-7 + 1x) + 2x * (-7 + x)) = 0
4(-7 + 1x + (-7 * 2x + x * 2x)) = 0
4(-7 + 1x + (-14x + 2x2)) = 0

Combine like terms: 1x + -14x = -13x
4(-7 + -13x + 2x2) = 0
(-7 * 4 + -13x * 4 + 2x2 * 4) = 0
(-28 + -52x + 8x2) = 0

Solving
-28 + -52x + 8x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-7 + -13x + 2x2) = 0

Factor a trinomial.
4((-1 + -2x)(7 + -1x)) = 0

Ignore the factor 4.

Subproblem 1
Set the factor '(-1 + -2x)' equal to zero and attempt to solve:

Simplifying
-1 + -2x = 0

Solving
-1 + -2x = 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 + -2x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -2x = 0 + 1
-2x = 0 + 1

Combine like terms: 0 + 1 = 1
-2x = 1

Divide each side by '-2'.
x = -0.5

Simplifying
x = -0.5

Subproblem 2
Set the factor '(7 + -1x)' equal to zero and attempt to solve:

Simplifying
7 + -1x = 0

Solving
7 + -1x = 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 + -1x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -1x = 0 + -7
-1x = 0 + -7

Combine like terms: 0 + -7 = -7
-1x = -7

Divide each side by '-1'.
x = 7

Simplifying
x = 7
Solution
x = {-0.5, 7}

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