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

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


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

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

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

Multiply (-2 + 7x) * (-2 + 7x)
(-2(-2 + 7x) + 7x * (-2 + 7x)) = 4
((-2 * -2 + 7x * -2) + 7x * (-2 + 7x)) = 4
((4 + -14x) + 7x * (-2 + 7x)) = 4
(4 + -14x + (-2 * 7x + 7x * 7x)) = 4
(4 + -14x + (-14x + 49x2)) = 4

Combine like terms: -14x + -14x = -28x
(4 + -28x + 49x2) = 4

Add '-4' to each side of the equation.
4 + -28x + -4 + 49x2 = 4 + -4

Reorder the terms:
4 + -4 + -28x + 49x2 = 4 + -4

Combine like terms: 4 + -4 = 0
0 + -28x + 49x2 = 4 + -4
-28x + 49x2 = 4 + -4

Combine like terms: 4 + -4 = 0
-28x + 49x2 = 0

Solving
-28x + 49x2 = 0

Solving for variable 'x'.

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

Ignore the factor 7.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(-4 + 7x)' equal to zero and attempt to solve: Simplifying -4 + 7x = 0 Solving -4 + 7x = 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 + 7x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + 7x = 0 + 4 7x = 0 + 4 Combine like terms: 0 + 4 = 4 7x = 4 Divide each side by '7'. x = 0.5714285714 Simplifying x = 0.5714285714

Solution

x = {0, 0.5714285714}

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