Solve: ( left{begin{array}{l}2 x^{2}-6 y^{2}=-78 x^{2}+3 y^{2}=51end{array}right. )

Question

Solve: ( left{begin{array}{l}2 x^{2}-6 y^{2}=-78  x^{2}+3 y^{2}=51end{array}right. )

Accepted Answer

Step:1 ：( x^{2} = 51 - 3y^{2} )Step:2 ：( 2(51 - 3y^{2}) - 6y^{2} = -78 )Step:3 ：( y^{2} = 22, y = pm sqrt{22} )Step:4 ：( x = pm sqrt{51 - 66} = pm sqrt{-15} )

Answer

Step: 1 ：( x^{2} = 51 - 3y^{2} )Step: 2 ：( 2(51 - 3y^{2}) - 6y^{2} = -78 )Step: 3 ：( y^{2} = 22, y = pm sqrt{22} )Step: 4 ：( x = pm sqrt{51 - 66} = pm sqrt{-15} )

Solve: ${\begin{cases} 2 x^{2} - 6 y^{2} = - 78 \\ x^{2} + 3 y^{2} = 51 \end{cases}$

Answer

Popular Problems

Solve: {2x2−6y2=−78x2+3y2=51

Answer

Popular Problems

Solve: ${\begin{cases} 2 x^{2} - 6 y^{2} = - 78 \\ x^{2} + 3 y^{2} = 51 \end{cases}$