Jiayang's answer to Insyirah Ash-Sharh's Junior College 1 H1 Maths question.
Thank you
How did it get 2pq at the sum?
(a+b)² = a² + b² +2ab
(a+b)² − 2ab = a² + b²
-(a+b)² + 2ab = −(a² + b²j
(a+b)² − 2ab = a² + b²
-(a+b)² + 2ab = −(a² + b²j
Aaaa. I see. Thank you for always helping me. I couldn't get the answer for this paper since it's not provided.
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