Respuesta :

The correct answer is the last one -18

[tex]\huge \bf༆ Answer ༄[/tex]

Here's the solution ~

  • [tex] \sf( {a}^{2} - b {}^{2} ) = (a + b)(a - b)[/tex]

[ by using identities ]

  • [tex] \sf{(a + b)(a - b)}[/tex]

  • [tex](6) \times ( - 3)[/tex]

  • [tex] \sf - 18[/tex]

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