(8x+4)(8x-4)=y

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Solution for (8x+4)(8x-4)=y equation:


Simplifying
(8x + 4)(8x + -4) = y

Reorder the terms:
(4 + 8x)(8x + -4) = y

Reorder the terms:
(4 + 8x)(-4 + 8x) = y

Multiply (4 + 8x) * (-4 + 8x)
(4(-4 + 8x) + 8x * (-4 + 8x)) = y
((-4 * 4 + 8x * 4) + 8x * (-4 + 8x)) = y
((-16 + 32x) + 8x * (-4 + 8x)) = y
(-16 + 32x + (-4 * 8x + 8x * 8x)) = y
(-16 + 32x + (-32x + 64x2)) = y

Combine like terms: 32x + -32x = 0
(-16 + 0 + 64x2) = y
(-16 + 64x2) = y

Solving
-16 + 64x2 = y

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + 64x2 = 16 + y

Combine like terms: -16 + 16 = 0
0 + 64x2 = 16 + y
64x2 = 16 + y

Divide each side by '64'.
x2 = 0.25 + 0.015625y

Simplifying
x2 = 0.25 + 0.015625y

Reorder the terms:
-0.25 + x2 + -0.015625y = 0.25 + 0.015625y + -0.25 + -0.015625y

Reorder the terms:
-0.25 + x2 + -0.015625y = 0.25 + -0.25 + 0.015625y + -0.015625y

Combine like terms: 0.25 + -0.25 = 0.00
-0.25 + x2 + -0.015625y = 0.00 + 0.015625y + -0.015625y
-0.25 + x2 + -0.015625y = 0.015625y + -0.015625y

Combine like terms: 0.015625y + -0.015625y = 0.000000
-0.25 + x2 + -0.015625y = 0.000000

The solution to this equation could not be determined.

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