Question

Evaluate |c 2 + b 2|, given a = 5, b = -3, and c = -2.

Answer 1

help?

Answer 2

answer is 10
positive 10
you want an explanation?

Answer 3

@.Gjallarhorn. yes please

Answer 4

so since c=-2, you multiply -2 and 2 together. what do you get?

Answer 5

-4? @.Gjallarhorn.

Answer 6

right now leave that off to the side and lets go to the other one

Answer 7

since b=-3 you multiply -3 and 2 together and you get?

Answer 8

-6

Answer 9

good. now you gotta add both your results. so -4 + -6 =?

Answer 10

making it positive 10

Answer 11

good try but no. -4+ -6= -10

Answer 12

but thats not our final answer. so you see how the equation has a line like this? >> |

Answer 13

on both sides?

Answer 14

yea

Answer 15

that means whatever you get inside those lines, is measured as a distance from 0

Answer 16

how many units away it is from 0.

Answer 17

oh i thought it was the negatives canceiling each other out >.<

Answer 18

so in |-6|
-6 is 6 units away from 0. so your answer would be six in a question like this

Answer 19

oh okay

Answer 20

thats just an example

Answer 21

so how many units is -10 away from 0?

Answer 22

10 units

Answer 23

right. so these are always positive. 10 is your answer . good job

Answer 24

thanks

Answer 25

hmm \(\large |c^2 + b^2|\qquad
\begin{cases}
a=5\\b=-3\\c=-2
\end{cases}\qquad ?\)

Answer 26

no prob