Factorise: 729m^3 -133m^3
allysia:
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729m^3 -133m^3= 596m^3
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Answered by
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I think , you did some mistake here,
becoz 133 isn't a perfect square number
by the way I will solve
729m³ - 133n³
= (9m)³ - (³√133n)³
[ use, formula a³ - b³ = (a - b)(a² + b² + a-b)]
= (9m- ³√133n){81m² +(133n)⅔ + (9m)(133n)⅓ }
becoz 133 isn't a perfect square number
by the way I will solve
729m³ - 133n³
= (9m)³ - (³√133n)³
[ use, formula a³ - b³ = (a - b)(a² + b² + a-b)]
= (9m- ³√133n){81m² +(133n)⅔ + (9m)(133n)⅓ }
Answered by
0
Answer:
729m³ - 133n³
= (9m)³ - (³√133n)³
[ use, formula a³ - b³ = (a - b)(a² + b² + a-b)]
= (9m- ³√133n){81m² +(133n)⅔ + (9m)(133n)⅓ }
Step-by-step explanation:
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