x(x+15)=1000

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Solution for x(x+15)=1000 equation:


Simplifying
x(x + 15) = 1000

Reorder the terms:
x(15 + x) = 1000
(15 * x + x * x) = 1000
(15x + x2) = 1000

Solving
15x + x2 = 1000

Solving for variable 'x'.

Reorder the terms:
-1000 + 15x + x2 = 1000 + -1000

Combine like terms: 1000 + -1000 = 0
-1000 + 15x + x2 = 0

Factor a trinomial.
(-40 + -1x)(25 + -1x) = 0

Subproblem 1

Set the factor '(-40 + -1x)' equal to zero and attempt to solve: Simplifying -40 + -1x = 0 Solving -40 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '40' to each side of the equation. -40 + 40 + -1x = 0 + 40 Combine like terms: -40 + 40 = 0 0 + -1x = 0 + 40 -1x = 0 + 40 Combine like terms: 0 + 40 = 40 -1x = 40 Divide each side by '-1'. x = -40 Simplifying x = -40

Subproblem 2

Set the factor '(25 + -1x)' equal to zero and attempt to solve: Simplifying 25 + -1x = 0 Solving 25 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-25' to each side of the equation. 25 + -25 + -1x = 0 + -25 Combine like terms: 25 + -25 = 0 0 + -1x = 0 + -25 -1x = 0 + -25 Combine like terms: 0 + -25 = -25 -1x = -25 Divide each side by '-1'. x = 25 Simplifying x = 25

Solution

x = {-40, 25}

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