Question

the sum of two expression is 3 X square + 3 x y minus y square is one of them is 2 x square + 3 square find the other​

Answer 1

Answer:

according to question:-

the other expression + (2x^2+3^2) = 3x^2 + 3xy - y^2

the other expression = 3x^2 + 3xy - y^2 - (2x^2+3^2)

the other expression = 3x^2 + 3xy - y^2 - 2x^2 - 9

the other expression = x^2 + 3xy - y^2 - 9