(x-4)(x+5)-10=0

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Solution for (x-4)(x+5)-10=0 equation:


Simplifying
(x + -4)(x + 5) + -10 = 0

Reorder the terms:
(-4 + x)(x + 5) + -10 = 0

Reorder the terms:
(-4 + x)(5 + x) + -10 = 0

Multiply (-4 + x) * (5 + x)
(-4(5 + x) + x(5 + x)) + -10 = 0
((5 * -4 + x * -4) + x(5 + x)) + -10 = 0
((-20 + -4x) + x(5 + x)) + -10 = 0
(-20 + -4x + (5 * x + x * x)) + -10 = 0
(-20 + -4x + (5x + x2)) + -10 = 0

Combine like terms: -4x + 5x = 1x
(-20 + 1x + x2) + -10 = 0

Reorder the terms:
-20 + -10 + 1x + x2 = 0

Combine like terms: -20 + -10 = -30
-30 + 1x + x2 = 0

Solving
-30 + 1x + x2 = 0

Solving for variable 'x'.

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

Subproblem 1

Set the factor '(-6 + -1x)' equal to zero and attempt to solve: Simplifying -6 + -1x = 0 Solving -6 + -1x = 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 + -1x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1x = 0 + 6 -1x = 0 + 6 Combine like terms: 0 + 6 = 6 -1x = 6 Divide each side by '-1'. x = -6 Simplifying x = -6

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-6, 5}

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