x^(2)-7x+9yi" and "y^(2)*i+20i+12

The real values of x and y for which the complex numbers 9y^(2)-4- 10 x i and 8y^(2) +20i^(7) are conjugate to each other are-

For what value of x and y, the complex numbers. 9 y^(2)-4-10 x i and 8 y^(2)+20 i^(7) are conjugate to each other

(i) x^(2)-7x+12=0 (ii) y^(2)+y-12=0

I. x^(2) -7x + 12 = 0" "II. 3y^(2) - 11y + 10 = 0

I. 10x^(2) - 7x + 1= 0" " II. 35y^(2) - 12y + 1 = 0

In the following questions two equation numbered I and II are given You have to solve both equations and . . . . . (i) x^(2)-7x+12=0 (ii) y^(2)-12y+32=0

I. 3x^(2) - 22x + 7 = 0 II. y^(2) - 20y + 91 = 0

If Z=x^(2)-7x-9yi such that bar(Z)=y^(2)i+20i-12 then the number of order pair (x,y) is :

I. 20x^(2) - x - 12 = 0 II. 20y^(2) + 27y + 9 = 0

I. x^(2) - 7x + 10 = 0" "II. Y^(2) - 12y + 35 = 0