(X-4)(5x+9)=0

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Solution for (X-4)(5x+9)=0 equation:


Simplifying
(X + -4)(5x + 9) = 0

Reorder the terms:
(-4 + X)(5x + 9) = 0

Reorder the terms:
(-4 + X)(9 + 5x) = 0

Multiply (-4 + X) * (9 + 5x)
(-4(9 + 5x) + X(9 + 5x)) = 0
((9 * -4 + 5x * -4) + X(9 + 5x)) = 0
((-36 + -20x) + X(9 + 5x)) = 0
(-36 + -20x + (9 * X + 5x * X)) = 0
(-36 + -20x + (9X + 5xX)) = 0

Reorder the terms:
(-36 + 9X + -20x + 5xX) = 0
(-36 + 9X + -20x + 5xX) = 0

Solving
-36 + 9X + -20x + 5xX = 0

Solving for variable 'X'.

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

Add '36' to each side of the equation.
-36 + 9X + -20x + 36 + 5xX = 0 + 36

Reorder the terms:
-36 + 36 + 9X + -20x + 5xX = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 9X + -20x + 5xX = 0 + 36
9X + -20x + 5xX = 0 + 36

Combine like terms: 0 + 36 = 36
9X + -20x + 5xX = 36

Add '20x' to each side of the equation.
9X + -20x + 20x + 5xX = 36 + 20x

Combine like terms: -20x + 20x = 0
9X + 0 + 5xX = 36 + 20x
9X + 5xX = 36 + 20x

Reorder the terms:
-36 + 9X + -20x + 5xX = 36 + 20x + -36 + -20x

Reorder the terms:
-36 + 9X + -20x + 5xX = 36 + -36 + 20x + -20x

Combine like terms: 36 + -36 = 0
-36 + 9X + -20x + 5xX = 0 + 20x + -20x
-36 + 9X + -20x + 5xX = 20x + -20x

Combine like terms: 20x + -20x = 0
-36 + 9X + -20x + 5xX = 0

The solution to this equation could not be determined.

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