Math, asked by g5goobarharprinishu, 1 year ago

Find the value of x 3 -y 3 - 18xy-216 when x-y=6

Answers

Answered by mysticd

15

x-y=6---------(1)

(x-y)^3=6^3 [cubeing both sides]

x3-y3-3xy(x-y)=216

x3-y3-3xy*6=216 [from (1)]

x3-y3-18xy-216=0

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