Question

64 - a³ ÷ a - 4


pls explain.​

Answer 1

Step-by-step explanation:

$64 - {a}^{3} = {4}^{3}-{a}^{3}=(4 - a)({4}^{2}+{a}^{2}+4a)=(4-a)(16+ {a}^{2} + 4a) \\ (a - 4) = - (4 - a) \\ According \: to \: question \: 64 - {a}^{3} \\ = \frac{(4 - a)(16 + {a}^{3} + 4a) }{ - (4 - a)} = -( 16 + {a}^{3} + 4a) \\ Answer = - (16 + {a}^{3} + 4a)$