Question

1234567890123456789=​

Answer 1

Answer:

16x

4

−81y

4

=(2x)

4

−(3y)

4

=(4x

2

)

2

−(9y

2

)

2

=(4x

2

−9y

2

)(4x

2

+9y

2

)

Answer 2

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1234567890123456789 = 1234567890987654321