Find the minimum value of x which the expression  
x³-7x²+11x - 5 ≥ 0.

If x²+y²+z² = xy + yz + zx, then the value of is

What is the area (in sq. cm) of a rhombus if the lengths of the diagonals are 12 cm and 14 cm ?

If a=x+y, b=x-y, c=x+2y, then is

If p=99, then the value of p(p²+3p+3) will be

If a\b + b\a =1, then the value of a³+b³ will be 

Three positive numbers are in the ratio of 11 : 12 : 15. If the sum of the squares of those numbers is 1960, then the sum of the numbers is

Find the value of a and b if (x-1) and (x+1) are factors of x⁴+ax³-3x²+2x+b