leanne's answer to Hii's Secondary 2 Maths Singapore question.
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Example of algebraic identities:
(a+b)2 = a2+2ab+b2
(a-b)2 = a2-2ab+b2
a2-b2 = (a+b)(a-b)
(a+b)2 = a2+2ab+b2
(a-b)2 = a2-2ab+b2
a2-b2 = (a+b)(a-b)
Date Posted:
3 years ago
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