i have qaustion but the problem i am not geting the same answer

syms x y
eqn = [x + y == 1000,0.4818*10^-7*x^4 - 0.9089*10^-4 + 0.6842*10^-1*x^2 - 0.2106*10^2*x + 9860 == 0.9592*10^-7*y^4 - 0.7811*10^-4*y^3 + 0.2625*10^-1*y^2 - 0.2189*10*y + 9003]
sol = solve(eqn, [x y], 'MaxDegree', 4)
sol.x

i am geting these answers

>> vpa(sol.x)

ans =

5356.1153115505689987091534529373

387.53359536588140834981169092996

328.53164205916041477357519519496 + 553.13850485286769309273713883156i

328.53164205916041477357519519496 - 553.13850485286769309273713883156i

these answers what should i got butt i am get these big answers why

Lp=x=732.5

Lq=y=267.5

firs eq1=Lp+Lq==1000

eq2=0.4818*10^-7*x^4 - 0.9089*10^-4 + 0.6842*10^-1*x^2 - 0.2106*10^2*x + 9860 == 0.9592*10^-7*y^4 - 0.7811*10^-4*y^3 + 0.2625*10^-1*y^2 - 0.2189*10*y + 9003]

its not giveingthe right answers why ????

Answer 1

[Walter Roberson]

Look very carefully at the first equation. , , ,

But what you implemented instead was , , ,

Notice that the actual last term does not involve L and notice that it involves but what you implemented does involve L and involves a term without the ^2