Question

Factorise 5A - 6 b whole cube minus 7c - 5 a whole cube + 6b - 7c whole cube

Answer 1

Step-by-step explanation:

I hope this answer help you

Answer 2

3(5a-6b) (7c-5a) (6b-7c)

Step-by-step explanation:

we know that if a+b+c=0 ,than a^3 +b^3+c^3=3abc

so if we let

a=5a-6b

b=7c-5a

c=6b-7c

than,

5a-6b+7c-5a+6b-7c=0

so,

(5a-6b)^3+(7c-5a)^3 (6b-7c)^3=3abc

so we know the values of a, b, c

3(5a-6b) (7c-5a) (6b-7c) -answer

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