Annabel's answer to Ethan's Secondary 2 Maths Singapore question.
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Please be very familiar with the concept of:
a²—b² = (a+b)(a-b)
a²—b² = (a+b)(a-b)
Date Posted:
2 years ago
Thank you so much. Your working explains well the steps to me. I now understand well how to work with the formula
a^2-b^2=(a+b)(a-b)
a^2-b^2=(a+b)(a-b)
Thank you :))
You're welcome:)
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