Monday

July 28, 2014

July 28, 2014

Posted by **Zukii** on Wednesday, March 9, 2011 at 10:32am.

f(x)= x2-7x+12/x4-8x3+13x2+30x-72

- Calculus -
**MathMate**, Wednesday, March 9, 2011 at 9:09pmDo not forget the parentheses:

f(x)= (x2-7x+12)/(x4-8x3+13x2+30x-72)

The domain of f(x) is the intersections of the domain of the numerator and denominator, less the zeroes of the denominator.

The domain of polynomials is ℝ, for both the numerator and denominator. The roots of the denominator can be found by factorization, = (x-4)(x-3)²(x+2)

So at these values of x, there will be a vertical asymptote, and these three values have to be deducted from the domain.

**Related Questions**

Calculus - Find the derivative of f. you may simplify before differentiating f(x...

calculus - find all discontinuities (16x/2x3-8x3=0)

Algebra - Factor completely: 1. 8x3 + 2x3 – 12x –3 2. 27x3+8 3.125 – 8x3

calculus - for the given functions f&g, find the following and state the domain ...

calculus - for the given functions f&g, find the following and state the domain ...

calculus - for the given functions f and g, find the following and state the ...

Algebra: factoring - I need to find the value of x. 9x^3 + 9x = 30x^2 It's ...

Algebra - I posted this earlier in the day but no one answered. Can anyone help ...

calculus - Find all relative extrema of the function. (Enter NONE in any unused ...

math, algebra - can someone correct this for me or help me. 6x^2y^3+ 9x^2y^3 ...