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Question
Expand.
(58)3
Sum
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Solution
(58)3
= `(60 - 2)^3`
= `(60)^3 - 3 xx (60)^2 xx 2 + 3 xx (60) xx (2)^2 - (2)^3`
= 216000 − 3 × 3600 × 2 + 3 × 60 × 4 − 8
= 216000 − 21600 + 720 − 8
= 194400 + 712
= 195112
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