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Simplifying 49x2 + -84x + k = 0 Reorder the terms: k + -84x + 49x2 = 0 Solving k + -84x + 49x2 = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '84x' to each side of the equation. k + -84x + 84x + 49x2 = 0 + 84x Combine like terms: -84x + 84x = 0 k + 0 + 49x2 = 0 + 84x k + 49x2 = 0 + 84x Remove the zero: k + 49x2 = 84x Add '-49x2' to each side of the equation. k + 49x2 + -49x2 = 84x + -49x2 Combine like terms: 49x2 + -49x2 = 0 k + 0 = 84x + -49x2 k = 84x + -49x2 Simplifying k = 84x + -49x2
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