" What inst "A=[[5,3],[1,2]]" hatinfits the equition "x^(2)-3x-7=0" and tir tire find "A

Show that A=[(5, 3),(-1,-2)] satisfies the equation x^2-3x-7=0 . Thus, find A^(-1)

Show that A=[53-1-2] satisfies the equation x^(2)-3x-7=0 .Thus,find A^(-1)

Find the value of 5x^2-3x+7 at x=0

5) 3x-4y=-7;5x-2y=0 find x and y

If X+Y=[[7,0],[2,5]] and X-Y=[[3,0],[0,3]] then Find X and Y.

Find the value of x: 5x-2(2x-7)=2(3x-1)+7/2

Without solving, find the nature of the roots of the following equations: (i) 3x^(2)-7x+5=0 . (ii) 4x^(2)+4x+1=0 . (iii) 3x^(2)+7x+2=0 . (iv) x^(2)+px-q^(2)=0 .

Find x if A = [[2,3,-1],[x,-5,0],[-1,0,7]] is symmetric matrix

If X+Y=[[7,0],[2,5]] and X-Y=[[3,0],[0,3]] then Find 2X+Y .