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A^2 -6.2A +32 = 0
A^2 - 12 A + 32 = 0 (
A - 8) (A - 4) = 0
A = 8 V A = 4
2^x = 2^3 V 2^x = 2^2
x1 = 3 V x2 = 2
2.3 + 2 = 8