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Practice Test Discussion

Q)

$8^{1.38} \times 8^{1.63} = ?$

A)

680

B)

218

C)

726

D)

512

E)

134

Explanation

Given ,

$8^{1.38} \times 8^{1.63} = ?$

= $8^{1.38} \times 8^{1.63}$

= $8^{1.38 + 1.63}$

= $8^{3.07} \approx 8^{3} \approx 512$

Hence, Option C is correct.

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