Explicación paso a paso:
[tex]f( - 2) = 2 {( - 2)}^{2} - 2 - 8 \\ = - 2[/tex]
[tex]f(1) = 2 {(1)}^{2} - 1 - 8 \\ = - 7[/tex]
Respuesta: f(-2) = 2 y f(1) = -7 .
Si f(x) =2x²-x-8, f(-2) = 2(-2)² - (-2) - 8 = 2 ⇒ f(-2) = 2.
f(1) = 2(1)² - 1 - 8 = -7
.
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Explicación paso a paso:
[tex]f( - 2) = 2 {( - 2)}^{2} - 2 - 8 \\ = - 2[/tex]
[tex]f(1) = 2 {(1)}^{2} - 1 - 8 \\ = - 7[/tex]
Respuesta: f(-2) = 2 y f(1) = -7 .
Explicación paso a paso:
Si f(x) =2x²-x-8, f(-2) = 2(-2)² - (-2) - 8 = 2 ⇒ f(-2) = 2.
f(1) = 2(1)² - 1 - 8 = -7
.