Question

I am seriously please help me solve this question using elimination mathord of class 10​

Answer 1

ANSWER

x=4,y=8

Step-by-step explanation:

LET ,1/ROOT X=a, 1/ROOT Y=b

2a+3b=2---(1)

4a-9b=-1---(2)

FROM EQUATION 1,

2a+3b=2

2a=2-3b

a=2-3b/2

PUT a IN EQUATION 2, WE GET

4 (2-3b/2)-9b= -1

2 (2-3b)-9b= -1

4-6b-9b= -1

4-15b=-1

-15b= -1-4

-15b= -5

b=5/15

b=1/3

PUT B IN EQUATION 1

2a+3b=2

2a+3×1/3=2

2a+1=2

2a=2-1

2a=1

a=1/2

WE KNOW THAT

1/ROOT X=a

1/ROOT Y=b

1/ROOT X= 1/2 , 1/ROOT Y= 1/3BC

2=ROOT X , 3=ROOT Y

2^2=X , 3^2=Y

4=X , 9=Y

HENCE PROVED

HOPE IT WILL HELP U