please solve it with steps
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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)
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0
Answer:
120 hope this is help full to u and all the best
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