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Mathematics 8 Online
iuytyuioiuytyuiop:

maht problem

iuytyuioiuytyuiop:

1 attachment
QuestionCoveBot:

@AZ or @snowflake0531

iuytyuioiuytyuiop:

@AZ

AZ:

this is very much like a previous question you did which of the three equations do we use when x is 0?

iuytyuioiuytyuiop:

the second one?

iuytyuioiuytyuiop:

-4<x<0

AZ:

are you sure? the second one has x< 0 x is LESS THAN 0 but we need it to include 0 for us to use the equation

iuytyuioiuytyuiop:

0<x

iuytyuioiuytyuiop:

its a eual or less than

AZ:

that's a less than if it was -4 \(\le\) x \(\le\) 0 then it would be the second one but it's -4 \(\le\) x < 0 so we have to use the third one 0 \(\le\) x

iuytyuioiuytyuiop:

thats the one i said!!!!!!!!1

AZ:

if you're trying to do the equal to part you can also write it as 0 <= x

iuytyuioiuytyuiop:

lol

AZ:

so the equation is x^2 - 2 what do you get when you plug in x = 0

iuytyuioiuytyuiop:

0-2=2

AZ:

are you sure? what is 0 - 2 =

iuytyuioiuytyuiop:

-2

iuytyuioiuytyuiop:

-2?

AZ:

that's your final answer

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