(7x+6)(x-9)=0

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Solution for (7x+6)(x-9)=0 equation:


Simplifying
(7x + 6)(x + -9) = 0

Reorder the terms:
(6 + 7x)(x + -9) = 0

Reorder the terms:
(6 + 7x)(-9 + x) = 0

Multiply (6 + 7x) * (-9 + x)
(6(-9 + x) + 7x * (-9 + x)) = 0
((-9 * 6 + x * 6) + 7x * (-9 + x)) = 0
((-54 + 6x) + 7x * (-9 + x)) = 0
(-54 + 6x + (-9 * 7x + x * 7x)) = 0
(-54 + 6x + (-63x + 7x2)) = 0

Combine like terms: 6x + -63x = -57x
(-54 + -57x + 7x2) = 0

Solving
-54 + -57x + 7x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-6 + -7x)(9 + -1x) = 0

Subproblem 1

Set the factor '(-6 + -7x)' equal to zero and attempt to solve: Simplifying -6 + -7x = 0 Solving -6 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -7x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -7x = 0 + 6 -7x = 0 + 6 Combine like terms: 0 + 6 = 6 -7x = 6 Divide each side by '-7'. x = -0.8571428571 Simplifying x = -0.8571428571

Subproblem 2

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 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 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {-0.8571428571, 9}

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