Question

expand (a-2)³ using identity​

Answer 1

Answer:

$(a - 2) {}^{3}$

$a {}^{3} - (2) {}^{3} - 3 \times a \times 2(a - 2)$

$a {}^{2} - 8 - 6a(a - 2)$

${a}^{3} - 8 - 6 {a}^{2} - 12a$

${a}^{3} - {6a}^{2} - 12a - 8$