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Simplifying 7x2 + bx + -8 = 0 Reorder the terms: -8 + bx + 7x2 = 0 Solving -8 + bx + 7x2 = 0 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '8' to each side of the equation. -8 + bx + 8 + 7x2 = 0 + 8 Reorder the terms: -8 + 8 + bx + 7x2 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + bx + 7x2 = 0 + 8 bx + 7x2 = 0 + 8 Combine like terms: 0 + 8 = 8 bx + 7x2 = 8 Add '-7x2' to each side of the equation. bx + 7x2 + -7x2 = 8 + -7x2 Combine like terms: 7x2 + -7x2 = 0 bx + 0 = 8 + -7x2 bx = 8 + -7x2 Divide each side by 'x'. b = 8x-1 + -7x Simplifying b = 8x-1 + -7x
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