multiply 6x^3-y+3x^2y by x^2+y^2
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3x-2y=24 _____ (1)
2x-3y=18 _____ (2)
multiply (1) by 2
6x - 4y = 48
multiply (2) by 3
6x-9y=54
subtracting
6x - 4y = 48
6x - 9y = 54
- + -
___________
5y = -6
y=− 5−63x−2(− 56 )=24
=3x+ 5
12=24
=3x=24− 5
12=5
120−12= 108
∴x= 536x+y= 536−6 =
530 =6x−y= 5
36+6= 542
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