([b,7,8,2times,5],[8,x,1,7,3])=|[6,-2],[1,-2]|," writh the value "f_(x)

If [[ 2 x , 5],[ 8 , x ]] = [[6 , -2 ],[7 , 3 ]], then, x=

Given that A={2,5,7,8,10},B={5,7,2,x,10} and A=B, write the value of x.

If A = [[x,1,-x],[0,1,-1],[x,0,7]] and det (A) = |(3,0,1),(2,-1,0),(0,6,7)| , then the value of x is a)-3 b)3 c)2 d)-8

If A=|[3, 2], [7, 5]| and B=|[6 ,7], [8, 9]| , verify that (A B)^(-1)=B^(-1)A^(-1) .

If (5x)/(2)-[7(6x)-3/2]=5/8 then what is the value of x

If f (x) =2x ^(2) -5x +7, what is the value of f (8) -f (3) ?

If different values of variable x are 9*8,5*4,3*7,1*7,1*8,2*6,2*8,8*6,10*5 and 11*1 , find the value of Sigma(x-overline(x))