(7x-9)(7x-9)=

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Solution for (7x-9)(7x-9)= equation:


Simplifying
(7x + -9)(7x + -9) = 0

Reorder the terms:
(-9 + 7x)(7x + -9) = 0

Reorder the terms:
(-9 + 7x)(-9 + 7x) = 0

Multiply (-9 + 7x) * (-9 + 7x)
(-9(-9 + 7x) + 7x * (-9 + 7x)) = 0
((-9 * -9 + 7x * -9) + 7x * (-9 + 7x)) = 0
((81 + -63x) + 7x * (-9 + 7x)) = 0
(81 + -63x + (-9 * 7x + 7x * 7x)) = 0
(81 + -63x + (-63x + 49x2)) = 0

Combine like terms: -63x + -63x = -126x
(81 + -126x + 49x2) = 0

Solving
81 + -126x + 49x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(9 + -7x)(9 + -7x) = 0

Subproblem 1

Set the factor '(9 + -7x)' equal to zero and attempt to solve: Simplifying 9 + -7x = 0 Solving 9 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -7x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -7x = 0 + -9 -7x = 0 + -9 Combine like terms: 0 + -9 = -9 -7x = -9 Divide each side by '-7'. x = 1.285714286 Simplifying x = 1.285714286

Subproblem 2

Set the factor '(9 + -7x)' equal to zero and attempt to solve: Simplifying 9 + -7x = 0 Solving 9 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -7x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -7x = 0 + -9 -7x = 0 + -9 Combine like terms: 0 + -9 = -9 -7x = -9 Divide each side by '-7'. x = 1.285714286 Simplifying x = 1.285714286

Solution

x = {1.285714286, 1.285714286}

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