Question

Evaluate the following: (i) (-67)3 + (35)3 + (32)3 ​

Answer 1

Answer:

Evaluate the following: (i) (-67)3 + (35)3 + (32)3 I can't understand

Answer 2

Answer:

(-67)³+35³+32³

=35³+32³-(35+32)³

=35³+32³-{35³+32³+3×35²×32+3×35×32²}

=-3{32×35²+35×32²}

=-3{32×1225+35×1024}

=-3{4×4×2450+1000×35+24×35}

=-3{8×49×100+35,000+25×35–35}

≈-{50×800–800+35,000+3500/4–35}

=-3{40,000+35,000+875–800–35}

=-3{75,000+840–800}

=-3{75,000+40}

=-225,000–120

=-225,120