Multiply 10½ x 2³/⁷
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10^½ × 2^3/7
= ( 5 × 2 )^½ × 2^3/7
= { (5)^½ × (2)^½ } × 2^3/7
= 5^½ × [ 2^ ½ + 3/7 ] ( as the bases a equal )
= 5^½ × [ 2^ ( 7 + 6 )/14 ]
= 5^½ × 2^13/14
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