Solve the given quadratic equations and answer the following question. Equation A: (x - 4)² = (-2x)² + 45 - 22x - R - 9 Equation B: (6t² + 7t + 5 6 × ( 12 5 t − 18 ) ) = 0 One root of equation A is 8. What is the value of ( 11 R 20 × 0.2 R ) − ( 40 × 20 ) ?

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