(9x+y)(9x-y)=2

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Solution for (9x+y)(9x-y)=2 equation:


Simplifying
(9x + y)(9x + -1y) = 2

Multiply (9x + y) * (9x + -1y)
(9x * (9x + -1y) + y(9x + -1y)) = 2
((9x * 9x + -1y * 9x) + y(9x + -1y)) = 2

Reorder the terms:
((-9xy + 81x2) + y(9x + -1y)) = 2
((-9xy + 81x2) + y(9x + -1y)) = 2
(-9xy + 81x2 + (9x * y + -1y * y)) = 2
(-9xy + 81x2 + (9xy + -1y2)) = 2

Reorder the terms:
(-9xy + 9xy + 81x2 + -1y2) = 2

Combine like terms: -9xy + 9xy = 0
(0 + 81x2 + -1y2) = 2
(81x2 + -1y2) = 2

Solving
81x2 + -1y2 = 2

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add 'y2' to each side of the equation.
81x2 + -1y2 + y2 = 2 + y2

Combine like terms: -1y2 + y2 = 0
81x2 + 0 = 2 + y2
81x2 = 2 + y2

Divide each side by '81'.
x2 = 0.02469135802 + 0.01234567901y2

Simplifying
x2 = 0.02469135802 + 0.01234567901y2

Reorder the terms:
-0.02469135802 + x2 + -0.01234567901y2 = 0.02469135802 + 0.01234567901y2 + -0.02469135802 + -0.01234567901y2

Reorder the terms:
-0.02469135802 + x2 + -0.01234567901y2 = 0.02469135802 + -0.02469135802 + 0.01234567901y2 + -0.01234567901y2

Combine like terms: 0.02469135802 + -0.02469135802 = 0.00000000000
-0.02469135802 + x2 + -0.01234567901y2 = 0.00000000000 + 0.01234567901y2 + -0.01234567901y2
-0.02469135802 + x2 + -0.01234567901y2 = 0.01234567901y2 + -0.01234567901y2

Combine like terms: 0.01234567901y2 + -0.01234567901y2 = 0.00000000000
-0.02469135802 + x2 + -0.01234567901y2 = 0.00000000000

The solution to this equation could not be determined.

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