Find `x` if `2x-4=16 `

Find the roots of x^4-16x^3+86x^2-176x+105=0

Find x, if : sqrt(2^(x+3)) = 16

If f(x)={(2^(x+2)-16)/(4^x-16) , if x!=2 , k if x=2 is continuous at x=2 , find k

Find the value of x if: (-9)/(16)xx(4)/(3)=(x)/(2)

Find the values of x for which the inequality (8x^(2)+16x-51)/((2x-3)(x+4))gt3 holds.

Find the value of x in each of the following : x : 1.6 : : 2.1 : 8.4

Find the value of m so that lines y=x+1, 2x+y=16 and y=mx-4 may be concurrent.

If 2^4\ xx\ 4^2=16^x , then find the value of x ?

Find the points of discontinuity, if any, of the following function: f(x)={(x^4-16)/(x-2)\ \ \ ,\ \ \ if\ x!=2\ \ \ \ 16\ \ \ ,\ \ \ if\ x=2

If x= -5 + sqrt(-16) , find the value of x^(4) + 9x^(3) + 35x^(2)-x + 4