1
Question
Factorise it :-
14(3y - 5z)3 + 7(3y - 5)2
Factorise it :-
14(3y - 5z)3 + 7(3y - 5)2
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Solution
14(3y - 5z)^3 + 7(3y - 5z)^2
= 7[2(3y - 5z)^3 + (3y - 5z)^2]
= 7(3y - 5z)^2 [2(3y - 5z) + 1]
= 7(3y - 5z)^2 [2(3y) - 2(5z) + 1]
= 7(3y - 5z)^2 (6y - 10z + 1)
= 7[2(3y - 5z)^3 + (3y - 5z)^2]
= 7(3y - 5z)^2 [2(3y - 5z) + 1]
= 7(3y - 5z)^2 [2(3y) - 2(5z) + 1]
= 7(3y - 5z)^2 (6y - 10z + 1)
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