Solve 3x2 -  5y3 = -2  x2 +  y2 =  136  x=11754 y=9457

Solve 3x2 -  5y3 = -2  x2 +  y2 =  136  x=11754 y=9457
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Solve 3x2 5y3 = -2;  x2 y2 136

A.

 x=11754, y=9457

B.

x=9457, y=5119

C.

x=5119, y=9457

D.

y=11754, x=9457

Please scroll down to see the correct answer and solution guide.

Right Answer is: B

SOLUTION

3x25y3 = -2

Multiply by 6 on both sides

9x - 10y = -12 -------------(1)

x2y2136

Multiply by 6 on both sides

3x + 3y = 13  --------------(2)

(1)   ⇒ x=  10y129............(3)

Substituting equation (3) in equation (2)

3[10y129] + 3y = 13

10y - 12 + 9y = 39

19y = 51

y =  5119

x =  10[5119]12928219×9943×199457