Answer :
Answer:
Kendall combine like terms [tex]2y^2[/tex] and [tex]-3y^2[/tex] incorrectly.
Step-by-step explanation:
It is given that Kendall says the sum of [tex]6x^2+4xy+2y^2[/tex] and [tex]4x^2-2xy-3y^2[/tex] is [tex]10x^2+2xy-5y^2[/tex].
Step 1: Add both expression
[tex]6x^2+4xy+2y^2+4x^2-2xy-3y^2[/tex]
Step 2: Combine like terms
[tex](6x^2+4x^2)+(4xy-2xy)+(2y^2-3y^2)[/tex]
Step 3: Simplify
[tex]10x^2+2xy-y^2[/tex]
The sum of both expressions is [tex]10x^2+2xy-y^2[/tex].
Kendall made an error during step 3. His mistake is
[tex]2y^2-3y^2=-5y^2[/tex]
Therefore, Kendall combine like terms [tex]2y^2[/tex] and [tex]-3y^2[/tex] incorrectly.