Let f(x) = 8x3 − 28x + 61 and g(x) = 2x + 5. Find f of x over g of x.

4x2 + 10x + 34 + 116 over quantity of 2 x plus 5
4x2 + 10x + 34 + quantity of 2 x plus 5 over 116
4x2 − 10x + 11+ quantity of 2 x plus 5 over 6
4x2 − 10x + 11+ 6 over quantity of 2 x plus 5

Respuesta :

Answer:

[tex]4x^2-10x+11+\frac{6}{2x+5}[/tex]

Step-by-step explanation:

The given functions are:

[tex]f(x)=8x^3-28x+61[/tex] and [tex]g(x)=2x+5[/tex]

By algebraic properties of functions;

[tex]\frac{f(x)}{g(x)}=\frac{8x^3-28x+61}{2x+5}[/tex]

We perform the long division of the two polynomials as shown in the attachment.

Therefore:

[tex]\frac{8x^3-28x+61}{2x+5}=4x^2-10x+11+\frac{6}{2x+5}[/tex]

The last choice is correct

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