(x-4)(2x-9)=0

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Solution for (x-4)(2x-9)=0 equation:


Simplifying
(x + -4)(2x + -9) = 0

Reorder the terms:
(-4 + x)(2x + -9) = 0

Reorder the terms:
(-4 + x)(-9 + 2x) = 0

Multiply (-4 + x) * (-9 + 2x)
(-4(-9 + 2x) + x(-9 + 2x)) = 0
((-9 * -4 + 2x * -4) + x(-9 + 2x)) = 0
((36 + -8x) + x(-9 + 2x)) = 0
(36 + -8x + (-9 * x + 2x * x)) = 0
(36 + -8x + (-9x + 2x2)) = 0

Combine like terms: -8x + -9x = -17x
(36 + -17x + 2x2) = 0

Solving
36 + -17x + 2x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(4 + -1x)(9 + -2x) = 0

Subproblem 1

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Subproblem 2

Set the factor '(9 + -2x)' equal to zero and attempt to solve: Simplifying 9 + -2x = 0 Solving 9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2x = 0 + -9 -2x = 0 + -9 Combine like terms: 0 + -9 = -9 -2x = -9 Divide each side by '-2'. x = 4.5 Simplifying x = 4.5

Solution

x = {4, 4.5}

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