Question

(a-2)³с формулой (a-b)³a³-3a²b+3ab-b³​

Answer 1

Объяснение:

Решение на фотографии

Answer 2

It looks like you're trying to expand the expression $(a - 2)^3$. To do this, you can use the formula for expanding $(a - b)^3$, which is:

$(a - b)^3 = a^3 - 3a^2b + 3ab^2 - b^3$

In your case, $b = 2$, so the expression $(a - 2)^3$ expands to:

$a^3 - 3a^2 \cdot 2 + 3a \cdot 2^2 - 2^3$ $= a^3 - 6a^2 + 12a - 8$