Aubreigh95751 Aubreigh95751
  • 07-06-2020
  • Mathematics
contestada

Por favor ayudenme, plis (x2+ 3x - 5 )2

Respuesta :

Teebhabzie Teebhabzie
  • 09-06-2020

Answer:

[tex]x^4 + 6x^3 - x^2 - 30x + 25[/tex]

Step-by-step explanation:

Multiplica la expresión por sí misma y expande el corchete:

[tex](x^2+ 3x - 5 )^2\\\\= (x^2+ 3x - 5 )*(x^2+ 3x - 5 )\\\\= x^2(x^2+ 3x - 5 ) +3x(x^2+ 3x - 5 ) - 5(x^2+ 3x - 5 )\\ \\x^4 + 3x^3 - 5x^2 + 3x^3 + 9x^2 - 15x - 5x^2 -15x + 25\\\\x^4 + 3x^3 + 3x^3 -5x^2 + 9x^2 - 5x^2 - 15x - 15x + 25\\\\= x^4 + 6x^3 - x^2 - 30x + 25[/tex]

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