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If P³ + 3P² + 3P = 7, then the value of P²+ 2P is –

If 15a² + 1 = 20a, then find the value of {(9a² + 1)/25a²}

if a² + b² + c² = 2(3a -5b -6c)-70 , then a-b-c = ?

If 3x + (1/3x) = 8 then find 27x³ + (1/27x³) = ?

(123×123×123 + 130×130×130)/(123×123 - 123×130 + 130×130) = ? 

If x + y + xy = 118, such that x < y and both 'x' and 'y' are positive integers, then find minimum value of (x + y) .

Find the value of ‘x’ in the given expression

(49/16)^x × (64/343)^x-1 = 4/7