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Simplifying 0 = x4 + -11x3 + 30x2 Reorder the terms: 0 = 30x2 + -11x3 + x4 Solving 0 = 30x2 + -11x3 + x4 Solving for variable 'x'. Remove the zero: -30x2 + 11x3 + -1x4 = 30x2 + -11x3 + x4 + -30x2 + 11x3 + -1x4 Reorder the terms: -30x2 + 11x3 + -1x4 = 30x2 + -30x2 + -11x3 + 11x3 + x4 + -1x4 Combine like terms: 30x2 + -30x2 = 0 -30x2 + 11x3 + -1x4 = 0 + -11x3 + 11x3 + x4 + -1x4 -30x2 + 11x3 + -1x4 = -11x3 + 11x3 + x4 + -1x4 Combine like terms: -11x3 + 11x3 = 0 -30x2 + 11x3 + -1x4 = 0 + x4 + -1x4 -30x2 + 11x3 + -1x4 = x4 + -1x4 Combine like terms: x4 + -1x4 = 0 -30x2 + 11x3 + -1x4 = 0 Factor out the Greatest Common Factor (GCF), 'x2'. x2(-30 + 11x + -1x2) = 0 Factor a trinomial. x2((-6 + x)(5 + -1x)) = 0Subproblem 1
Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}Subproblem 2
Set the factor '(-6 + x)' equal to zero and attempt to solve: Simplifying -6 + x = 0 Solving -6 + x = 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 + x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + x = 0 + 6 x = 0 + 6 Combine like terms: 0 + 6 = 6 x = 6 Simplifying x = 6Subproblem 3
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 = 5Solution
x = {0, 6, 5}
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