(7+m)³ expand using formula
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1
Answer:
Using (x+y)³ = x³+3x²y+3xy²+y³
(7+M)³ = 7³+3.7²M+3.7.M²+M³
= M³ + 21M² + 147M + 343
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(7 + m)³
ID: (a + b)³ = a³ + b³ + 3ab (a + b)
Here our a = 7 and b = m
= (7)³ + (m)³ + 3 x 7 x m (7 + m)
= 343 + m³ + 21m (7 + m)
= 343 + m³ + 147m + 21m²
Hope it helps you ☺️
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ID: (a + b)³ = a³ + b³ + 3ab (a + b)
Here our a = 7 and b = m
= (7)³ + (m)³ + 3 x 7 x m (7 + m)
= 343 + m³ + 21m (7 + m)
= 343 + m³ + 147m + 21m²
Hope it helps you ☺️
Mark me as a brainlist please ❤️❤️
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