y=(x-5i)(x+5i)

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Solution for y=(x-5i)(x+5i) equation: 


Simplifying
y = (x + -5i)(x + 5i)

Reorder the terms:
y = (-5i + x)(x + 5i)

Reorder the terms:
y = (-5i + x)(5i + x)

Multiply (-5i + x) * (5i + x)
y = (-5i * (5i + x) + x(5i + x))
y = ((5i * -5i + x * -5i) + x(5i + x))

Reorder the terms:
y = ((-5ix + -25i2) + x(5i + x))
y = ((-5ix + -25i2) + x(5i + x))
y = (-5ix + -25i2 + (5i * x + x * x))
y = (-5ix + -25i2 + (5ix + x2))

Reorder the terms:
y = (-5ix + 5ix + -25i2 + x2)

Combine like terms: -5ix + 5ix = 0
y = (0 + -25i2 + x2)
y = (-25i2 + x2)

Solving
y = -25i2 + x2

Solving for variable 'y'.

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

Simplifying
y = -25i2 + x2

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