Kelsey Ong Hui Ping's answer to Sophia's Secondary 3 A Maths question.

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Kelsey Ong Hui Ping
Kelsey Ong Hui Ping's answer
22 answers (Tutor Details)
Removing Surds by Rationalizing the Denominator.
Multiply the two terms in the denominator by the opposite sign to achieve a2-b2.
Rainbow Expansion on the numerator and simplify the terms!