+0

# PLEASE HELP CPHILL WYA!!!

0
28
2

Find constants $A$ and $B$ such that $\frac{x - 7}{x^2 - x - 2} = \frac{A}{x - 2} + \frac{B}{x + 1}$for all $x$ such that $x\neq -1$ and $x\neq 2$. Give your answer as the ordered pair $(A,B)$

Aug 29, 2021

### 2+0 Answers

#1
0

If you let x go infinity, then you get 0 = A - B.

If you let x = 0, then you get 7/2 = A/(-2) + B.

The solution to this system is then A = 7, B = 7, so (A,B) = (7,7).

Aug 29, 2021
#2
0

sorry, it says it's incorrect. @asinus can you help?

Aug 29, 2021