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

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


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

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

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

Multiply (-9 + X) * (5 + 4x)
(-9(5 + 4x) + X(5 + 4x)) = 0
((5 * -9 + 4x * -9) + X(5 + 4x)) = 0
((-45 + -36x) + X(5 + 4x)) = 0
(-45 + -36x + (5 * X + 4x * X)) = 0
(-45 + -36x + (5X + 4xX)) = 0

Reorder the terms:
(-45 + 5X + -36x + 4xX) = 0
(-45 + 5X + -36x + 4xX) = 0

Solving
-45 + 5X + -36x + 4xX = 0

Solving for variable 'X'.

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

Add '45' to each side of the equation.
-45 + 5X + -36x + 45 + 4xX = 0 + 45

Reorder the terms:
-45 + 45 + 5X + -36x + 4xX = 0 + 45

Combine like terms: -45 + 45 = 0
0 + 5X + -36x + 4xX = 0 + 45
5X + -36x + 4xX = 0 + 45

Combine like terms: 0 + 45 = 45
5X + -36x + 4xX = 45

Add '36x' to each side of the equation.
5X + -36x + 36x + 4xX = 45 + 36x

Combine like terms: -36x + 36x = 0
5X + 0 + 4xX = 45 + 36x
5X + 4xX = 45 + 36x

Reorder the terms:
-45 + 5X + -36x + 4xX = 45 + 36x + -45 + -36x

Reorder the terms:
-45 + 5X + -36x + 4xX = 45 + -45 + 36x + -36x

Combine like terms: 45 + -45 = 0
-45 + 5X + -36x + 4xX = 0 + 36x + -36x
-45 + 5X + -36x + 4xX = 36x + -36x

Combine like terms: 36x + -36x = 0
-45 + 5X + -36x + 4xX = 0

The solution to this equation could not be determined.

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