(7-x)(5x+6)=0

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Solution for (7-x)(5x+6)=0 equation:


Simplifying
(7 + -1x)(5x + 6) = 0

Reorder the terms:
(7 + -1x)(6 + 5x) = 0

Multiply (7 + -1x) * (6 + 5x)
(7(6 + 5x) + -1x * (6 + 5x)) = 0
((6 * 7 + 5x * 7) + -1x * (6 + 5x)) = 0
((42 + 35x) + -1x * (6 + 5x)) = 0
(42 + 35x + (6 * -1x + 5x * -1x)) = 0
(42 + 35x + (-6x + -5x2)) = 0

Combine like terms: 35x + -6x = 29x
(42 + 29x + -5x2) = 0

Solving
42 + 29x + -5x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(7 + -1x)(6 + 5x) = 0

Subproblem 1

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Subproblem 2

Set the factor '(6 + 5x)' equal to zero and attempt to solve: Simplifying 6 + 5x = 0 Solving 6 + 5x = 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 + 5x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + 5x = 0 + -6 5x = 0 + -6 Combine like terms: 0 + -6 = -6 5x = -6 Divide each side by '5'. x = -1.2 Simplifying x = -1.2

Solution

x = {7, -1.2}

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