(x+7)(x+10)=-2

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Solution for (x+7)(x+10)=-2 equation:


Simplifying
(x + 7)(x + 10) = -2

Reorder the terms:
(7 + x)(x + 10) = -2

Reorder the terms:
(7 + x)(10 + x) = -2

Multiply (7 + x) * (10 + x)
(7(10 + x) + x(10 + x)) = -2
((10 * 7 + x * 7) + x(10 + x)) = -2
((70 + 7x) + x(10 + x)) = -2
(70 + 7x + (10 * x + x * x)) = -2
(70 + 7x + (10x + x2)) = -2

Combine like terms: 7x + 10x = 17x
(70 + 17x + x2) = -2

Solving
70 + 17x + x2 = -2

Solving for variable 'x'.

Reorder the terms:
70 + 2 + 17x + x2 = -2 + 2

Combine like terms: 70 + 2 = 72
72 + 17x + x2 = -2 + 2

Combine like terms: -2 + 2 = 0
72 + 17x + x2 = 0

Factor a trinomial.
(9 + x)(8 + x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8

Solution

x = {-9, -8}

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