- a)4/√x +2/√x = √x

b)8/√y + 6/√y =√yx>yxx ≥yx≤yx=y or relation cannot be establishedOption B

1/√x (4+2)=√x==6

8/√y + 6/√y=√y==14 - a)y^2-300 =724

b)z-√225 = √289y>zyy ≥zy≤zy=z or relation cannot be establishedOption D

y=+-32

z=17+15=32 - a)y^2=x^2=96

b)y-x=8x>yxx ≥yx≤yx=y or relation cannot be establishedOption B

(y+x)(y-x)=96

(y+x)8=96

y+x=12

y-x=8

y=10 and x=2 - a)x^2=841

b)y=√841x>yxx ≥yx≤yx=y or relation cannot be establishedOption D

x=29,-29

y=29 - a)y^2-x^2=112

b)y-x=8x>yxx ≥yx≤yx=y or relation cannot be establishedOption B - a)y^2=1600

b)360/z=360/(z+5) + 1y>zyy ≥zy≤zy=z or relation cannot be establishedOption E

y=40,-40

z=40,-45 - a)x^2-18x+72=0

b)y^2+30y+221=0x>yxx ≥yx≤yx=y or relation cannot be establishedOption A

x=12,6

y=-13,-17 - a)2x^2-11x+14=0

b)y^2-9y+20=0x>yxx ≥yx≤yx=y or relation cannot be establishedOption B

x=3.5,2

y=5,4 - a)3x^2+5x-2=0

b)5y^2-18y+9=0x>yxx ≥yx≤yx=y or relation cannot be establishedOption B - a)x^2-13x+40=0

b)y^2-8y+15=0x>yxx ≥yx≤yx=y or relation cannot be establishedOption C