Question

4(x - y)² - 12(x - y) + 9​

Answer 1

Answer:

Step-by-step explanation:

→ 4(x - y)² - 12(x - y) + 9​

→ [4(x²-2xy+y²)] - [12(x - y)] + 9

→ [4 × x² - 4 × 2xy + 4 × y²] - [12 × x - 12 × y] + 9

→ 4x² - 8xy + 4y² - 12x - 12y + 9

→ 4x² - 12x + 4y² - 12y - 8xy + 9