Respuesta:
[tex]f(9) = \frac{321}{46} [/tex]
Explicación paso a paso:
[tex]f(5x + 1) = 4x {}^{2} - 3[/tex]
[tex]f = \frac{4x {}^{2} - 3}{5x + 1} [/tex]
Hallamos F(9)
[tex]f(9) = \frac{4(9) {}^{2} - 3}{5(9) + 1} [/tex]
[tex]f = \frac{4(81) - 3}{45 + 1} [/tex]
[tex]f = \frac{324 - 3}{45 + 1} [/tex]
[tex]f = \frac{321}{46} [/tex]
Entonces f(9) es Igual
[tex]f(9) = \frac{321}{46} = 6.98[/tex]
Espero Te Sirva, Saludos JB
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Respuesta:
[tex]f(9) = \frac{321}{46} [/tex]
Explicación paso a paso:
[tex]f(5x + 1) = 4x {}^{2} - 3[/tex]
[tex]f = \frac{4x {}^{2} - 3}{5x + 1} [/tex]
Hallamos F(9)
[tex]f(9) = \frac{4(9) {}^{2} - 3}{5(9) + 1} [/tex]
[tex]f = \frac{4(81) - 3}{45 + 1} [/tex]
[tex]f = \frac{324 - 3}{45 + 1} [/tex]
[tex]f = \frac{321}{46} [/tex]
Entonces f(9) es Igual
[tex]f(9) = \frac{321}{46} = 6.98[/tex]
Espero Te Sirva, Saludos JB