Question

$if\: {x}^{ - 2 } - {y}^{3} = 3 \\ then \: prove \: that \: 3 {x}^{2 } + {x}^{2} {y}^{3 } = 1$

Answer 1

hope this helps you.

Answer 2

Hi ,

x^-2 - y³ = 3

( 1/x² )- y³ = 3

( 1 - x²y³ ) / x² = 3

1 - x²y³ = 3x²

1 = 3x² + x² y³

Therefore ,

3x² + x²y³ = 1

Hence proved.

I hope this helps you.

:)