Question

For f(x)=2x+1 and g(x)=x^2-7, find (f-g)(x)

Answer 1

I hope this helps you



(f-g)(x)=2x+1-(x^2-7)



(f-g)(x)=2x+1-x^2+7


(f-g)(x)= -x^2+2x+8

Answer 2

Answer:

The required answer is: $-x^2+2x+8$

Step-by-step explanation:

We have been given the two function:

$f(x)=2x+1$

And $g(x)=x^2-7$

We have to find (f-g)(x):

$(f-g)(x)=f(x)-g(x)$

$(2x+1)-(x^2-7)$

$2x+1-x^2+7$

$-x^2+2x+8$

We will get the quadratic expression after the prescribed operation been applied.

Hence, the required answer is: $-x^2+2x+8$