Question

expand ..(ax+by)² .. ans ?? .plz help me.. ​

Answer 1

Answer:

ax² + by² + 2axby

Step-by-step explanation:

(ax + by)²

using the identity: (a + b)² = a² + b² + 2ab

a = ax

b = by

⇒ (ax² + by² + 2axby)

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