Math, asked by harshacharya2, 7 months ago

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Answered by SujalBendre
1

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 nilesh102
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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