Question

find the value of a^3-27b^3 if a-3b=-6​

Answer 1

Answer:

-36

Step-by-step explanation:

using (a-b)3=a3-b3-3ab(a-b)

(a-3b)=(a)3-(3b)3-3ab(a-3b)

(-6)3 =(a)3 - (3b)3 - 3(-10)(-6)

a3-27b3 = -216+180

ANSWER =a3-27b3 = -36

and i suggest you to take ab=-10

behen

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