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- If x + 1/x = 5, then find [x2 + (1/x2)].
- Find the number of zeroes in 18 × 125 × 20 × 32.
- If p = 34 - q - r and pq + r(q + p) = 289, then find the value of (p² + q² + r²).
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- Solve: (2x - 3)/5 - (x + 2)/4 = 1
- If (x2 + y2) = 9 and (xy)2 = 3, then find the value of (x4 + y4).
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- If x + 1/x = 5 then find out the value of x⁵ + 1/(x⁵)?
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