Question

subtract the following x² -2y²+2y-10 from x²+y²-3x-7​

Answer 1

       $\text{\huge \bf \underline{Answer:}}$

       $\text{We have to subtract }(x^{2} - 2y^{2} + 2y - 10) \text{ from }(x^{2} + y^{2} - 3x - 7)$

$\implies (x^{2} + y^{2} - 3x - 7) - (x^{2} - 2y^{2} + 2y - 10)$

$\implies x^{2} + y^{2} - 3x - 7 - x^{2} + 2y^{2} - 2y + 10$

$\implies y^{2} - 3x - 7 + 2y^{2} - 2y + 10$

$\implies 3y^{2} - 3x - 7 - 2y + 10$

$\implies \boxed{\boxed{3y^{2} - 3x - 2y + 3}}$