Sunday

April 20, 2014

April 20, 2014

Posted by **esora** on Thursday, May 12, 2011 at 2:22am.

8x+10/x^2+7x-18

please show work!

- pre calc -
**Reiny**, Thursday, May 12, 2011 at 7:24amI am pretty sure you meant:

(8x+10)/(x^2 + 7x - 18)

= (8x+10)/((x+9)(x-2))

let This be

A/(x+9) + B(x-2)

= ( A(x-2) + B(x+9) )/( (x+9)(x-2) )

so ...

A(x-2) + B(x+9) = 8x + 10

sub in A = 2, and B=-9 to find the constanst

**Related Questions**

Calculus - Write the form of the partial fraction decomposition of the rational ...

Math - Write the partial fraction decomposition of the rational expression. (80-...

PRE CALC - please help me solve this partial-fraction decomposition! 12x-57/(x-...

Algebra-Partial Fractions - Can you please help me with the following questions ...

Partial Decompostion Fractions - Can you please help me with the following ...

precalc - Write the partial fraction decomposition of the rational expression. ...

Pre-Calc Help - Evaluate the expression under the given conditions. (show work ...

kahyla - use the properties of logarithms to write the expression as a sum or ...

Pre-Calc - How do I solve this via partial fraction decomposition? (x^2+9)/(x^4-...

Pre-Calc - For the triangle shown, find the length AD. (Assume u = 18, v = 18, x...