Type of silviculture system which can regenerate through

If a² + c² + 17 = 2(a - 8b - 2c²), then what is the value of (a³ + b³ + c³)?

Solve: 1/x + 1/y = 5/2 and 1/x – 1/y = 1/6

If 27 (x+y)³ − 8(x−y)³ = (x + 5y) (Ax² + By² + Cxy), then what is the value of (A+B-C)?

If x ,y,z are three integers such that x +y = 8,y +z =13 and z +x =17,then the value of x² /yz   is:

If (a²  + 1/a² ) = 66, then find the value of (a³  – 1/a³ ).

48 24 24 48 ? 1536

Find ‘x’ if (x³+3x)/(3x²+1) = 189/61

If  a²+2 = 2a

then find a⁴ - a³ + 2a² -2a+ 9 = ?

If, p³ + q³= 485 and (p + q = 5), then find the value of [(1/p) + (1/q)]