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  • 11-10-2019
  • Mathematics
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Is f(x)=4x^2-x+1 then f(a+1) equals

Respuesta :

AlexVavvas
AlexVavvas AlexVavvas
  • 11-10-2019

Answer:

[tex]f(a + 1) = 4 {a}^{2} + 7a + 4[/tex]

Step-by-step explanation:

[tex]f(x) = 4 {x}^{2} - x + 1[/tex]

substitute...

change x with a+1. In other words...

[tex]f(a + 1) = 4 {(a + 1)}^{2} - (a + 1) + 1 \\ = 4( {a}^{2} + 2a + 1) - a - 1 + 1 \\ = 4 {a}^{2} + 8a + 4 - a \\ = 4 {a}^{2} + 7a + 4[/tex]

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