(3-x)(10+3x)=0

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Solution for (3-x)(10+3x)=0 equation:


Simplifying
(3 + -1x)(10 + 3x) = 0

Multiply (3 + -1x) * (10 + 3x)
(3(10 + 3x) + -1x * (10 + 3x)) = 0
((10 * 3 + 3x * 3) + -1x * (10 + 3x)) = 0
((30 + 9x) + -1x * (10 + 3x)) = 0
(30 + 9x + (10 * -1x + 3x * -1x)) = 0
(30 + 9x + (-10x + -3x2)) = 0

Combine like terms: 9x + -10x = -1x
(30 + -1x + -3x2) = 0

Solving
30 + -1x + -3x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(3 + -1x)(10 + 3x) = 0

Subproblem 1

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Subproblem 2

Set the factor '(10 + 3x)' equal to zero and attempt to solve: Simplifying 10 + 3x = 0 Solving 10 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + 3x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + 3x = 0 + -10 3x = 0 + -10 Combine like terms: 0 + -10 = -10 3x = -10 Divide each side by '3'. x = -3.333333333 Simplifying x = -3.333333333

Solution

x = {3, -3.333333333}

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