Question

add the following algebric expressions=9x^2-xy+6y^2, -4x^2+7xy-4y^2 and 2x^2+5xy+5y^2

Answer 1

SOLUTION,

⇝ $(9x^{2} -xy+6y^{2} )+ (-4x^{2} + 7xy-4y^{2} ) +(2x^{2} + 5xy + 5y^{2} )$

⇝ $9x^{2} - xy + 6y^{2} - 4x^{2} + 7xy -4y^{2} + 2x^{2} + 5xy + 5y^{2}$

⇝ $9x^{2} -4x^{2} +2x^{2} -xy+7xy+5xy+6y^{2} -4y^{2} + 5y^{2}$

⇝ $7x^{2} +11xy+7y^{2}$ Ans