Seudónimo Seudónimo
  • 18-06-2021
  • Mathematics
contestada

Evaluate the expression when a=8.

a²-9=?

Respuesta :

readmorenepal6
readmorenepal6 readmorenepal6
  • 18-06-2021

Answer:

(a-3)(a+3) is the answer

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Аноним Аноним
  • 18-06-2021

[tex]\implies {\blue {\boxed {\boxed {\purple {\sf {55}}}}}}[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]

[tex] {a}^{2} - 9[/tex]

Substituting the value "[tex]a = 8[/tex]" in the above expression, we have

➺ [tex] \: {8}^{2} - 9[/tex]

➺ [tex] \: (8 \times 8) - 9[/tex]

➺ [tex] \: 64 - 9[/tex]

➺ [tex] \: 55[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}[/tex]

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