- a)x^2 – 18x +72=0

b)3y^2 +7y + 4 =0x>yxx is less than or equal to yx is greater than or equal to yx=y or relationship cannot be establishedOption A

x=6 , 12

y=-1 , -4/3 - a)x^2 – 5x = 0

b)2y^2 +7 y-4 =0x>yxx is less than or equal to yx is greater than or equal to yx=y or relationship cannot be establishedOption E

x= 0 , 5

y=-4 , 1/ 2 - a)3x +2 y =16

b)2x+ 3y = 33/2

x>yxx is less than or equal to yx is greater than or equal to yx=y or relationship cannot be establishedOption B

x=3

y=3.5 - a)2x^2 +19x + 44 = 0

b)2y^2 +3y – 20 =0x>yxx is less than or equal to yx is greater than or equal to yx=y or relationship cannot be establishedOption C

x= – 4 ,-11/2

y= – 4 , 5/2 - a)2x^2 -7x + 6 =0

b)4y^2 = 9x>yxx is less than or equal to yx is greater than or equal to yx=y or relationship cannot be establishedOption D

x = 2 or 3/2

y= 3/2 or -3/2 - a)5/x – 4/y = -2

b)2/x +3/y= 13x>yxx is less than or equal to yx is greater than or equal to yx=y or relationship cannot be establishedOption A

x=1/2

y=1/3 - a) x^2 =5625

b) y =3√421875x>yxx is less than or equal to yx is greater than or equal to yx=y or relationship cannot be establishedOption C

x= 75 , -75

y= 75 - a)x^2 = 4

b)3y^2 – 4y – 4=0x>yxx is less than or equal to yx is greater than or equal to yx=y or relationship cannot be establishedOption E - a)5x^2 -13x – 6 = 0

b)3y^2 +14 y + 8 = 0x>yxx is less than or equal to yx is greater than or equal to yx=y or relationship cannot be establishedOption A

x= -2/5 , 3

y= – 4 , -2/3 - a)4x^2 +23x +15 = 0

b)4y^2 – 11y + 6 =0x>yxx is less than or equal to yx is greater than or equal to yx=y or relationship cannot be establishedOption B

x= -5 , -3/4

y= 3/4 , 2