salted egg's answer to Renny Fu's Secondary 1 Maths Singapore question.

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salted egg
Salted Egg's answer
112 answers (A Helpful Person)
1st
hi im sure there are other faster methods to do this qn but this is what i would do
Renny Fu
Renny Fu
2 years ago
Thank you so much!!!!
Eric Nicholas K
Eric Nicholas K
2 years ago
Using rules of indices (covered in Sec 3)

That number we need to find
= cube of (2^2 x 7)
= (2^2 x 7)^3
= (2^2)^3 x 7^3
= 2^(2 times 3) times 7^3
= 2^6 times 7^3