Question

2. SUBTRACT: x2 + 3xy-y2 from x2 + 5xy​

Answer 1

y² + 2 x y

Explanation:

Given polynomials

x² + 3x y -y² and x² + 5xy

The subtract x² + 3x y -y² from x² + 5xy

x² + 5xy - ( x² + 3x y -y²)

⇒ x² + 5xy -x² - 3xy +y²

⇒ 2 x y + y²