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

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


Simplifying
(5x + 6)(5 + x) = 0

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

Multiply (6 + 5x) * (5 + x)
(6(5 + x) + 5x * (5 + x)) = 0
((5 * 6 + x * 6) + 5x * (5 + x)) = 0
((30 + 6x) + 5x * (5 + x)) = 0
(30 + 6x + (5 * 5x + x * 5x)) = 0
(30 + 6x + (25x + 5x2)) = 0

Combine like terms: 6x + 25x = 31x
(30 + 31x + 5x2) = 0

Solving
30 + 31x + 5x2 = 0

Solving for variable 'x'.

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

Subproblem 1

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

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 = {-5, -1.2}

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