The sum and difference of two expressions are 5x²-x-4 and x²+9x+10 respectively. The HCF of the two expressions will be

If x=2^1/3+2^-1/3, then the value of 2x³-6x-5 is equal to 

If the equations x²-px+q=0 and x²+qx-p=0 have a common root, then which one of the following is correct

If a²-by-cz = 0, ax-b²+cz=0 and ax+by-c²=0, then the value of 

x/a+x+y/b+y+z/c+z

will be

If P/x + q/y = m and q/x+p/y = n, then what is x/y equal to 

If 

√3x²-7x-30-√2x²-7x-5 = x-5

has ∝ and β as its roots, then the value of ∝β is