Answer:
identity: (x + y)³ = x³ + y³ + 3xy (x + y)
Step-by-step explanation:
(100 + 5) (100 + 5) (100 + 5)
x = 100, y = 5
= (100)³ + (5)³ + 3 × 100 x 5 × (100 + 5)
= 1,000,000 + 125 + 1500 × (100 + 5)
= 1,000,125 + 150,000 + 7500
= 1,157,625
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Verified answer
Answer:
identity: (x + y)³ = x³ + y³ + 3xy (x + y)
Step-by-step explanation:
(100 + 5) (100 + 5) (100 + 5)
x = 100, y = 5
= (100)³ + (5)³ + 3 × 100 x 5 × (100 + 5)
= 1,000,000 + 125 + 1500 × (100 + 5)
= 1,000,125 + 150,000 + 7500
= 1,157,625