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Simplifying rx2 + sx + t = 0 Solving rx2 + sx + t = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1sx' to each side of the equation. rx2 + sx + -1sx + t = 0 + -1sx Combine like terms: sx + -1sx = 0 rx2 + 0 + t = 0 + -1sx rx2 + t = 0 + -1sx Remove the zero: rx2 + t = -1sx Add '-1t' to each side of the equation. rx2 + t + -1t = -1sx + -1t Combine like terms: t + -1t = 0 rx2 + 0 = -1sx + -1t rx2 = -1sx + -1t Divide each side by 'x2'. r = -1sx-1 + -1tx-2 Simplifying r = -1sx-1 + -1tx-2
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