Question

please solve it with steps​

Answer 1

Step-by-step explanation:

a³-a-120

= a³-a-125+5

= a³-125-a+5

= (a³-125)-(a-5)

= {(a)³-(5)³}-(a-5)

= (a-5)(a²+5a+25)-(a-5)

= (a-5){(a²+5a+25)-1}

= (a-5)(a²+5a+25-1)

= (a-5)(a²+5a+24)

Answer 2

Answer:

120 hope this is help full to u and all the best