Tricia Chew's answer to Cshjwrk's Secondary 2 Maths Singapore question.
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Make the numbers perfect squares
Use the algebraic identity a^2-b^2 = (a+b)(a-b) to factorise
Use the algebraic identity a^2-b^2 = (a+b)(a-b) to factorise
Date Posted:
4 years ago
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