anonymous
  • anonymous
Evaluate the following expression using the values given: Find -a2 - 3b3 + c2 + 2b3 - c2 if a = 3, b = 2, and c = -3. a.-67 b.-17 c.-31 d.1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
@E.ali
anonymous
  • anonymous
Ok friend :) First get the numbers on them for example : if a=3 we have : -(3)^2- 3b3 + c2 + 2b3 - c2 OK ? Now its your turn if you was understand or if not send a massege :)
anonymous
  • anonymous
@E.ali I really don't get what your going with this

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More answers

anonymous
  • anonymous
ammm ... It s OK and no problem :) Can u answer it ? 3+5=?
anonymous
  • anonymous
8 @E.ali
anonymous
  • anonymous
OK ! Now if I say to u X=9 2+x=? What is the answer ?
anonymous
  • anonymous
11
anonymous
  • anonymous
Excelent ! Now if we have : X+y=? X=14 y=69 what is the answer ?
anonymous
  • anonymous
83
anonymous
  • anonymous
Thank u ! Now if we have : -x+y-z=? if : x=5 y=7 z=1
anonymous
  • anonymous
1
anonymous
  • anonymous
can u write ure way ?please ....:)
anonymous
  • anonymous
I just did it the way you did yours
anonymous
  • anonymous
What was your maen ? But look again : when we had : X+y=? X=14 y=69 u said : x_________>14+y__________>69 = 73 OK ???
anonymous
  • anonymous
Understand it ?
anonymous
  • anonymous
yes I do
anonymous
  • anonymous
Now look again to last question : -x+y-z=? if : x=5 y=7 z=1 Lets do it slow :) First get the numbers there ( in ( ) in the picture ) |dw:1063075732680:dw|
anonymous
  • anonymous
-(5) + (7) - (1)
anonymous
  • anonymous
Thank u ! Now can u answer to your self ?:)
anonymous
  • anonymous
yea I got 1
anonymous
  • anonymous
Can u write your answer ?
anonymous
  • anonymous
1 is my answer
anonymous
  • anonymous
Exelent :) Now answer it : of a=3 find : -a^2
anonymous
  • anonymous
-6
anonymous
  • anonymous
No friend the ^ means power ... Do u know that ?
anonymous
  • anonymous
oh 9
anonymous
  • anonymous
Thank u :) Very smart :) now find it : -3b^3 if b=2 Can u answer it too ? It s look like the last question :) Answer :)
anonymous
  • anonymous
@jasmin16 : I m sure u can answer it too :)
anonymous
  • anonymous
@jasmin16:Can u answer ?
anonymous
  • anonymous
I ment -(3)+(2)-(3)
anonymous
  • anonymous
@E.ali
anonymous
  • anonymous
Oh :) Look : u re fall comes again ... Look : ^ was power :)
anonymous
  • anonymous
so it goes like this -(32)^3 idk
anonymous
  • anonymous
look : If we dont have any think affter the a or b or c means its * so : -3b=-3 * b And -3b^3=_3 * b ^ 3 and now answer this : |dw:1063077345803:dw|
anonymous
  • anonymous
@jasmin16 : Can u answer this ?
anonymous
  • anonymous
-6
anonymous
  • anonymous
-6 for |dw:1063077585941:dw| Where is the ^2 ????
anonymous
  • anonymous
answer for this ???
anonymous
  • anonymous
yes
anonymous
  • anonymous
2^2=?
anonymous
  • anonymous
4
anonymous
  • anonymous
@E.ali
anonymous
  • anonymous
Now how about : 3^2
anonymous
  • anonymous
hallo ???
anonymous
  • anonymous
9
anonymous
  • anonymous
Thank u and how a bout : (-3)^2
anonymous
  • anonymous
9
anonymous
  • anonymous
Exelent :) and how about : (-6)^2
anonymous
  • anonymous
36
anonymous
  • anonymous
Thank u 1 and caculate it again : (-3 * 2 )^2
anonymous
  • anonymous
hallo ????
anonymous
  • anonymous
36
anonymous
  • anonymous
@E.ali
anonymous
  • anonymous
Yep :) Why u answered 17 ????? Now answer this : C^2if C=-3
anonymous
  • anonymous
hallo ?"
anonymous
  • anonymous
9
anonymous
  • anonymous
ok ! Now : -c^2if c= -3
anonymous
  • anonymous
that will be 9 again
anonymous
  • anonymous
No . look first do ( c )^2 what is the answer ?
anonymous
  • anonymous
hallo ???
anonymous
  • anonymous
3
anonymous
  • anonymous
oh look : if c=-3 C^2=(-3).(-3) OK ?:)
anonymous
  • anonymous
|dw:1063079759833:dw| answer this and wait :)
anonymous
  • anonymous
hallo ???
anonymous
  • anonymous
please wait than your answer please :)
anonymous
  • anonymous
9=-3*-3 0r 3=-3*-3
anonymous
  • anonymous
Ok ! Now we have 9 in the ( ) . So if we have - last ( ) means -( ) then what happen ?
anonymous
  • anonymous
hallo ???
anonymous
  • anonymous
-(+9)=?
anonymous
  • anonymous
@jasmin16:answer please to this question..:)
anonymous
  • anonymous
is the answer negative 31`
anonymous
  • anonymous
@E.ali
anonymous
  • anonymous
For this question ???
anonymous
  • anonymous
faster please ...
anonymous
  • anonymous
you know what I just guess cause it's the last question bye friend
anonymous
  • anonymous
Ok ! Excuse me :) look :|dw:1063081263271:dw|
anonymous
  • anonymous
I am trying to tell you idk
anonymous
  • anonymous
Ok .... Excuse me again :( Do you know -( ) ?
anonymous
  • anonymous
ain't it -3 or something
anonymous
  • anonymous
some think ... No diffrence ...:)
anonymous
  • anonymous
okay
anonymous
  • anonymous
Now can u answer them ?( Excuse me for my questions . they just for best learn :) ) -(-9)=?
anonymous
  • anonymous
-27?
anonymous
  • anonymous
How can u got it ? u think its (-9)^3 right ?
anonymous
  • anonymous
-729
anonymous
  • anonymous
If we have -( ) if the number was negative will be pazetive and if it was pazwtivw will be negative just it means when u have -(+)=(-) and when u have -(-) its + . u should just change the + or - . If it was - will + and if - will + . OK ?:)
anonymous
  • anonymous
yea
anonymous
  • anonymous
Got it ?
anonymous
  • anonymous
@jasmin16 : yes or no ???

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