Question

Factorise 64cm cube-343cm cube

Answer 1

Answer:

(4m - 7n) (16m^2+28mn+49n^2)

Step-by-step explanation:

a^3 - b^3 = (a - b) (a^2+ab+b^2)

64m^3 - 343n^3 = (4m - 7n) (16m^2+28mn+49n^2)

i.e. 4 cube is 64

and

7 cube is 343

so the answer is given above.

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