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Simplifying x2 + bx + -12 = 0 Reorder the terms: -12 + bx + x2 = 0 Solving -12 + bx + x2 = 0 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '12' to each side of the equation. -12 + bx + 12 + x2 = 0 + 12 Reorder the terms: -12 + 12 + bx + x2 = 0 + 12 Combine like terms: -12 + 12 = 0 0 + bx + x2 = 0 + 12 bx + x2 = 0 + 12 Combine like terms: 0 + 12 = 12 bx + x2 = 12 Add '-1x2' to each side of the equation. bx + x2 + -1x2 = 12 + -1x2 Combine like terms: x2 + -1x2 = 0 bx + 0 = 12 + -1x2 bx = 12 + -1x2 Divide each side by 'x'. b = 12x-1 + -1x Simplifying b = 12x-1 + -1x
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