3x^2+25=-20x

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Solution for 3x^2+25=-20x equation:


Simplifying
3x2 + 25 = -20x

Reorder the terms:
25 + 3x2 = -20x

Solving
25 + 3x2 = -20x

Solving for variable 'x'.

Reorder the terms:
25 + 20x + 3x2 = -20x + 20x

Combine like terms: -20x + 20x = 0
25 + 20x + 3x2 = 0

Factor a trinomial.
(5 + x)(5 + 3x) = 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 '(5 + 3x)' equal to zero and attempt to solve: Simplifying 5 + 3x = 0 Solving 5 + 3x = 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 + 3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3x = 0 + -5 3x = 0 + -5 Combine like terms: 0 + -5 = -5 3x = -5 Divide each side by '3'. x = -1.666666667 Simplifying x = -1.666666667

Solution

x = {-5, -1.666666667}

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