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-11x+4+8x+-4+3x

 Jan 30, 2015

Best Answer 

 #3
avatar+118578 
+5

Hi Nagendra,

Welcome to Web2.calc forum.   

I hope that you like it here.    

 

Thank you for your big effort.  Unfortunately it was not correct.  Please look at my solution and learn from it, then next time you are much more likely to get it correct.  :)  

I shall give you 3 points to get you started and for you effort.

 Jan 30, 2015
 #1
avatar+6 
+5

Final result :

 -1 • (x2 - x + 8) 

 

Step by step solution :

Step  1  :

 Raise x to the 2nd power 

Exponentiaion :

Equation at the end of step  1  :

 (((0-(4•(x2)))+-7x)+-4)+(((3•x2)+8x)+-4) 

Step  2  :

 Raise x to the 2nd power 

Exponentiaion :

Equation at the end of step  2  :

 (((0-(4•x2))+-7x)+-4)+(3x2+8x-4) 

Step  3  :

Simplify -4x2-7x-4 + 3x2+8x-4 

Pulling out like terms :

 3.1     Pull out like factors :

   -x2 + x - 8  =   -1 • (x2 - x + 8) 

 

 Jan 30, 2015
 #2
avatar+118578 
+5

-11x+4+8x+-4+3x

=-11x+4+8x-4+3x

=-11x+8x+3x      +4-4

=-11x+8x+3x       because 4-4=0

=-11x+    11x

=0

 

Always remember that you can only add like terms.   Sometimes when adding and subtracting it can be very useful to think of the letters as things.

S you can think of this as -11 xylophones + the number 4 +8 xylophones - the number 4 +3 xylophones

You can put all the xylophones together and as a seperate issue you can put the numbers together.  

 Jan 30, 2015
 #3
avatar+118578 
+5
Best Answer

Hi Nagendra,

Welcome to Web2.calc forum.   

I hope that you like it here.    

 

Thank you for your big effort.  Unfortunately it was not correct.  Please look at my solution and learn from it, then next time you are much more likely to get it correct.  :)  

I shall give you 3 points to get you started and for you effort.

Melody Jan 30, 2015

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