Y=(4x+5)(4x-5)

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Solution for Y=(4x+5)(4x-5) equation:


Simplifying
Y = (4x + 5)(4x + -5)

Reorder the terms:
Y = (5 + 4x)(4x + -5)

Reorder the terms:
Y = (5 + 4x)(-5 + 4x)

Multiply (5 + 4x) * (-5 + 4x)
Y = (5(-5 + 4x) + 4x * (-5 + 4x))
Y = ((-5 * 5 + 4x * 5) + 4x * (-5 + 4x))
Y = ((-25 + 20x) + 4x * (-5 + 4x))
Y = (-25 + 20x + (-5 * 4x + 4x * 4x))
Y = (-25 + 20x + (-20x + 16x2))

Combine like terms: 20x + -20x = 0
Y = (-25 + 0 + 16x2)
Y = (-25 + 16x2)

Solving
Y = -25 + 16x2

Solving for variable 'Y'.

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

Simplifying
Y = -25 + 16x2

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