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What is the value of (a² + b²+4c²- ab-2bc-2ca) (a + b+2c):

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

If 10x² – 6xy+y² – 4x+4= 0, then find the value of (3x+2y).

If 0.125x³ +0.216y³ = 210 and 0.25x² + 0.36y² = 10.30 then find the value of 0.5x + 0.6y.

If (4x + 3y): (28x - y) = 1: 5, then what is the value of (3x ²  + 4y ² ): (7x ²  + 2y ² )?

If  a²+2 = 2a

then find a⁴ - a³ + 2a² -2a+ 9 = ?

If a + `1/b` = 1 and b + `1/c` =1 , then the value of c + `1/a` is

If  (a³+1)/(a+1) = (a³-1)/(a-1) and a ≠ 1, -1. Find the value of  'a'

If a = 701, b= 703 and c= 706, then find the value of a³ + b³ +c³ –3abc?