Which of the following mycoherbicide is used to control

If x ⁸  + x ^-8  = 194, then find the value of (2x ²  – 4) ²  – 1.

The value of:

If x = 21, then the value of x⁵ - 22x⁴ + 22x³ - 22x² + 22x - 1 is

If x⁴ + x³ + x² + x + 1 = 0, then find the value of x¹⁵²⁵ + x⁷²⁰ + 14 + x³²⁰ =?

If a = 32, b = c = 31, then find the value of a ³  + b ³  + c ³  – 3abc.

(408 × 680)÷(20% of 680) = (250 × 260)÷ 10 + ? – 4500

If 70% of ‘y’ is 25% more than 30% of 140, then value of ‘y’ is:

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