CPM Homework Help : INT2 Problem 5-91

Calculate the value of each expression below. Then compare your answers to those in problem 5-90. What do you notice?

$\frac { - 13 - \sqrt { 13 ^ { 2 } - ( 4 ) ( 2 ) ( - 24 ) } } { 2 \:\cdot\: 2 }$
Answer (c):
$−8$

$\frac { - 13 + \sqrt { 13 ^ { 2 } - ( 4 ) ( 2 ) ( - 24 ) } } { 2 \:\cdot\: 2 }$
Hint (d):
Follow the steps in part (a).

Partial Answer:

The answers you get for parts (a) through (d) will match those found in problem 5-90.