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thanks i get it nowy=x^3
y=x^2
So:
x^3 = x^2
x^3 - x^2 = 0
x^2 (x-1) = 0 (factorise)
So x^2 = 0 or x-1 = 0
Solving the latter gives x = 1, and making the substitution into either y equation gives y = 1.
Oh i realized my mistake now thanksTo eliminate s, multiply the top equation by 3 and the bottom by 5 and then subtract both equations. Note that you want to get the lowest common multiple.
15s-9t-39=0 -
15s-35t-65=0
26t + 26 = 0
t= -1
You can either sub t=-1 into any of the equations or use elimination again to eliminate t and find s.
To find s, multiply top by 7 and bottom by 3 and subtract.