2 5 3 x 8 10 valor de x July 8, 2019 16 32 64 128 2 x 2 5 2) x - 5 3/5 =1 8 2^x + 8^x = 130 2 ⋅ ( x − 9 5 ) − 3 ⋅ ( x + 1 8 ) = − 4 4