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avatar+1150 

(3y^3 + 6) - ( y^3 + 4y^2 - 3y - 7)

 May 20, 2019
 #1
avatar+2855 
+4

Notice the subtraction sign

 

That actually is a "multiply by negative 1"

 

So distribute the negative 1 like you normally distribute.

 

Then remove parentheses and combine like terms. Try it.

 May 20, 2019
 #2
avatar+2855 
+3

I personally have a big problem remembering to distribute negatives. This has caused me to fail a "few" problems...

CalculatorUser  May 20, 2019
edited by CalculatorUser  May 20, 2019
 #3
avatar+1150 
+2

thx, this is a polynomial problem and it is subtraction.

SmartMathMan  May 20, 2019
 #4
avatar+219 
0

2y^3 + 4y^2 - 3y - 1 is the answer.

 

~~Hypotenuisance

 May 21, 2019

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