A=3x*(2x+4)-5*(4x*2)+x*(x+2)

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Solution for A=3x*(2x+4)-5*(4x*2)+x*(x+2) equation: 


Simplifying
A = 3x(2x + 4) + -5(4x * 2) + x(x + 2)

Reorder the terms:
A = 3x(4 + 2x) + -5(4x * 2) + x(x + 2)
A = (4 * 3x + 2x * 3x) + -5(4x * 2) + x(x + 2)
A = (12x + 6x2) + -5(4x * 2) + x(x + 2)

Reorder the terms for easier multiplication:
A = 12x + 6x2 + -5(4 * 2x) + x(x + 2)

Multiply 4 * 2
A = 12x + 6x2 + -5(8x) + x(x + 2)

Remove parenthesis around (8x)
A = 12x + 6x2 + -5 * 8x + x(x + 2)

Multiply -5 * 8
A = 12x + 6x2 + -40x + x(x + 2)

Reorder the terms:
A = 12x + 6x2 + -40x + x(2 + x)
A = 12x + 6x2 + -40x + (2 * x + x * x)
A = 12x + 6x2 + -40x + (2x + x2)

Reorder the terms:
A = 12x + -40x + 2x + 6x2 + x2

Combine like terms: 12x + -40x = -28x
A = -28x + 2x + 6x2 + x2

Combine like terms: -28x + 2x = -26x
A = -26x + 6x2 + x2

Combine like terms: 6x2 + x2 = 7x2
A = -26x + 7x2

Solving
A = -26x + 7x2

Solving for variable 'A'.

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

Simplifying
A = -26x + 7x2

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