# math

posted by .

f(x)=4-x^2 simplify completly. Use difference quotient.

• math -

( x - 2 ) ( x + 2 ) =

x ^ 2 - 2 x + 2 x - 4 =

x ^ 2 - 4 =

- ( x ^ 2 - 4 ) =

4 - x ^ 2

So :

4 - x ^ 2 = - ( x - 2 ) ( x + 2 )

## Similar Questions

1. ### Algebra

My problem is compute and simplify the difference quotient f(x+h)-f(x)/h h is not = 0 f(x)=7x-9 answer is 7
2. ### Algebra

Find the difference quotient: f(x+h)-f(x)/h for f(x) = 4x-9 and simplify.
3. ### Algebra

Please Find the difference quotient f(x+h)-fx/h for f(x)= 4x-9 and simplify
4. ### math

simplify the difference quotient: f(x+h)-f(x), (h ≠ 0) as much as possible when f(x)=5x^2+4x+6
5. ### Math-Help asap please~

For each function, the point given is the maximum or minimum. Use the difference quotient to verify that the slope of the tangent at this point is zero. a) f(x) = 0.5x^2 + 6x + 7.5; (-6, -10.5) Difference quotient is f(a + h) - f(a)/h …
6. ### Algebra II

Find the difference quotient for the following Rational Function f(x)=5/x using the four steps outlined below. a. find f(x+h) b. find f(x) c. substitute f(x+h) and f(x) into the difference quotient formula. d. simplify
7. ### Math

Evaluate the difference quotient for the given function. Simplify your answer. f(x)=1/x, (f(x)-f(a))/(x-a)
8. ### Algebra difference quotient

I am doing difference quotient. I am to write the difference quotient in simplistic form. I am having trouble on the simplifying. f(x) = 2x-3/4 The answer I got for this one is h-3/2h, provided h does not = 0. I wasn't sure on the …
9. ### maths

for the function f(x)=3/(2x-1), determine the difference quotient and simplify
10. ### maths

for the function f(x)= 3/(2x-1), determine the difference quotient and simplify

More Similar Questions