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Answered by
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Answer:
I know the right answer.
Step-by-step explanation:
( 6y - 5) *3 = ( 6y -5 )( 6y *2 + 2.6y.-5 + 5*2)
= ( 6y -5 ) (36y + (-60) + 25)
= ( 6y -5) (36y - 35)
= (6y - 5) it is common in both.
(6y - 5)*3=(6y -5)
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Answered by
2
solution:-
Q. => (6y - 5)³
we know,
(x - y)³ = x³ - 3x²y + 3xy³ - y³
so,
=> (6y-5)³
= (6y)³ - 3(6y)³(5) + 3(6y)(5)³ - (5)³
= 216y³ - 3240y³ + 2250y - 125
= - 3024y³ + 2250y - 125
i.e.
= 3024y³ - 2250y + 125
i hope it helps you.
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