Question

(a-1)^3. Plz answer it fast

Answer 1

*The formula is (a-b)³=a³-3a²b+3ab²-b³*

Putting b=1:

$(a-1)^{3}$=a³-3a²1+3a$1^{2}$-1³

=$a^{3} -3a^{2}+3a-1$

This will be the formula

Hope it helps.