Find the value of `x` if `4+x/8=5`

Find the value of 3x^2-5x+8 for x=3

Find the value of x for which (8x+4),\ (6x-2) and (2x+7) are in A.P.

Find the value of x , if 5^(x-3). 3^(2x-8)=225

Find the value of x , if 5^(x-3)\ 3^(2x-8)=225

Find the values of x , if |[2, 4], [5, 1]|=|[2x,4], [6,x]|

Find the values of x, if (i) |{:(2,4),(5,1):}|=|{:(2x,4),(6,x):}| (ii) |{:(2,3),(4,5):}|=|{:(x,3),(2x,5):}|

Find the value of a, if x+2\ is a factor of \ 4x^4+2x^3-3x^3+8x+5adot

Find the value of a , if x+2 is a factor of 4x^4+2x^3-3x^2+8x+5a

Find the value of a, if x -2 is a factor of 2x^5- 6x^4 -2ax^3+ 6ax^2+ 4ax + 8.

Find the values o x and y if: (5x-3y,y-3x)=(4,-4)