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Simplifying x2 + bx + -42 = 0 Reorder the terms: -42 + bx + x2 = 0 Solving -42 + bx + x2 = 0 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '42' to each side of the equation. -42 + bx + 42 + x2 = 0 + 42 Reorder the terms: -42 + 42 + bx + x2 = 0 + 42 Combine like terms: -42 + 42 = 0 0 + bx + x2 = 0 + 42 bx + x2 = 0 + 42 Combine like terms: 0 + 42 = 42 bx + x2 = 42 Add '-1x2' to each side of the equation. bx + x2 + -1x2 = 42 + -1x2 Combine like terms: x2 + -1x2 = 0 bx + 0 = 42 + -1x2 bx = 42 + -1x2 Divide each side by 'x'. b = 42x-1 + -1x Simplifying b = 42x-1 + -1x
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