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Mathematics 21 Online
Breathless:

Help fellas

Breathless:

1 attachment
Breathless:

@luigi0210

idontexistrn1:

how'd you start the question?

jhonyy9:

so there is (3q^2 -9q +14)-(2q^2 -7q+8) = ?

jhonyy9:

any idea ?

jhonyy9:

what you need to know first of all that you can subtracting just the same terms yes ? for example 3q^2 -2q^2 = ? continue please

Breathless:

yes and 3q^2-2q^2= 1q^2 right?

jhonyy9:

yes correct

Breathless:

alr

jhonyy9:

continue please what about second terms ?

Breathless:

second terms?

jhonyy9:

-9q-(-7q) = ?

idkw:

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Breathless:

it would turn to adding them right?

jhonyy9:

yes of cors

jhonyy9:

bc. this minus in front of second parantheses change the sign

Breathless:

so it would be 9+7 which is 16 but since it's a negative it would be -16q right?

jhonyy9:

no -9q-(-7q)= -9q+7q= ?

Breathless:

o

jhonyy9:

minus 9 dont change the sign

Breathless:

so -2q?

jhonyy9:

exactly

jhonyy9:

and now the 3rd terms

jhonyy9:

14-8= ?

Breathless:

6?

jhonyy9:

yes any questions ?

Breathless:

well it says it's wrong-

Breathless:

1 attachment
jhonyy9:

what is wrong ?

Breathless:

ye

hasbula:

need Minecraft servers? minecraft links? blooket hacks? proxies/game websites? DM(PM) me!!!!

jhonyy9:

@jhonyy9 wrote:
so there is (3q^2 -9q +14)-(2q^2 -7q+8) = ?
this is your posted problem ,yes ?

Breathless:

yes

jhonyy9:

3q^2 -9q +14 -2q^2 +7q -8 = q^2 -2q +6

jhonyy9:

and this is the right answer

Breathless:

yeah right as i copy it on it worked

Breathless:

Thanks man

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