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Simplifying f(x) + -18x2 + 9x + -5 = 0 Multiply f * x fx + -18x2 + 9x + -5 = 0 Reorder the terms: -5 + fx + 9x + -18x2 = 0 Solving -5 + fx + 9x + -18x2 = 0 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '5' to each side of the equation. -5 + fx + 9x + 5 + -18x2 = 0 + 5 Reorder the terms: -5 + 5 + fx + 9x + -18x2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + fx + 9x + -18x2 = 0 + 5 fx + 9x + -18x2 = 0 + 5 Combine like terms: 0 + 5 = 5 fx + 9x + -18x2 = 5 Add '-9x' to each side of the equation. fx + 9x + -9x + -18x2 = 5 + -9x Combine like terms: 9x + -9x = 0 fx + 0 + -18x2 = 5 + -9x fx + -18x2 = 5 + -9x Add '18x2' to each side of the equation. fx + -18x2 + 18x2 = 5 + -9x + 18x2 Combine like terms: -18x2 + 18x2 = 0 fx + 0 = 5 + -9x + 18x2 fx = 5 + -9x + 18x2 Divide each side by 'x'. f = 5x-1 + -9 + 18x Simplifying f = 5x-1 + -9 + 18x Reorder the terms: f = -9 + 5x-1 + 18x
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