(7x-9)(x-3)=19

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Solution for (7x-9)(x-3)=19 equation:


Simplifying
(7x + -9)(x + -3) = 19

Reorder the terms:
(-9 + 7x)(x + -3) = 19

Reorder the terms:
(-9 + 7x)(-3 + x) = 19

Multiply (-9 + 7x) * (-3 + x)
(-9(-3 + x) + 7x * (-3 + x)) = 19
((-3 * -9 + x * -9) + 7x * (-3 + x)) = 19
((27 + -9x) + 7x * (-3 + x)) = 19
(27 + -9x + (-3 * 7x + x * 7x)) = 19
(27 + -9x + (-21x + 7x2)) = 19

Combine like terms: -9x + -21x = -30x
(27 + -30x + 7x2) = 19

Solving
27 + -30x + 7x2 = 19

Solving for variable 'x'.

Reorder the terms:
27 + -19 + -30x + 7x2 = 19 + -19

Combine like terms: 27 + -19 = 8
8 + -30x + 7x2 = 19 + -19

Combine like terms: 19 + -19 = 0
8 + -30x + 7x2 = 0

Factor a trinomial.
(2 + -7x)(4 + -1x) = 0

Subproblem 1

Set the factor '(2 + -7x)' equal to zero and attempt to solve: Simplifying 2 + -7x = 0 Solving 2 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -7x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7x = 0 + -2 -7x = 0 + -2 Combine like terms: 0 + -2 = -2 -7x = -2 Divide each side by '-7'. x = 0.2857142857 Simplifying x = 0.2857142857

Subproblem 2

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

Solution

x = {0.2857142857, 4}

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