Question

If s = 2 - 2 1/3 + 22/3, then determine the value of (s3 - 6s2 + 18s + 18).

Answer 1

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Answer 2

s=2-21/3+22/3
=6-21-22/3 (3 is an lcm taken)
=7/3

s3-6s2+18s+18
=7/3*3-6*7/3*2+18*7/3+18
=7-28+42+18
=39