D=(4x-5)(2x+8)

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Solution for D=(4x-5)(2x+8) equation: 


Simplifying
D = (4x + -5)(2x + 8)

Reorder the terms:
D = (-5 + 4x)(2x + 8)

Reorder the terms:
D = (-5 + 4x)(8 + 2x)

Multiply (-5 + 4x) * (8 + 2x)
D = (-5(8 + 2x) + 4x * (8 + 2x))
D = ((8 * -5 + 2x * -5) + 4x * (8 + 2x))
D = ((-40 + -10x) + 4x * (8 + 2x))
D = (-40 + -10x + (8 * 4x + 2x * 4x))
D = (-40 + -10x + (32x + 8x2))

Combine like terms: -10x + 32x = 22x
D = (-40 + 22x + 8x2)

Solving
D = -40 + 22x + 8x2

Solving for variable 'D'.

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

Simplifying
D = -40 + 22x + 8x2

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