Question

1 – 2y + y² -a²b² - 2abcd -c²d²
factorisation​

Answer 1

Answer:

$1 - 2 \times y + y \times y - a \times a \times b \times b \times 2 \times a \times b \times c \times d - 2 \times a \times b \times c \times d - c \times c \times d \times d$

Step-by-step explanation:

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