1.

If a3 + 4a2 + 16a = 192, then what is the value of a3 + 8/a ?1. 652. 633. 684. 66

Answer» Correct Answer - Option 4 : 66

Given:

a3 + 4a2 + 16a = 192

Calculations:

a3 + 4a2 + 16a = 192

When a = 4

L.H.S = 64 + 64 + 64 = 192

L.H.S. = R.H.S.

So, a3 + 8/a = 43 + 8/4 = 64 + 2 = 66

∴ The value of a3 + 8/a is 66.



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