Question

solve using identity : (3x - 5 y)²​

Answer 1

Step-by-step explanation:

3x−5y)

2

=(3x−5y)(3x−5y)

=(3x)

2

−2.3x.5y+(5y)

2

=9x

2

−30xy+25y

2

∴(3x−5y)

2

=9x

2

−30xy+25y

2

3x−5y)

2

=(3x−5y)(3x−5y)

=(3x)

2

−2.3x.5y+(5y)

2

=9x

2

−30xy+25y

2

∴(3x−5y)

2

=9x

2

−30xy+25y

2

Answer 2

Step-by-step explanation:

(3x-5y) (3x+5y)

3x^2-2×3x×5y+5y^2

9x^2-30xy+25y^2

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