Answer:
Ali's solution is incorrect.
Step-by-step explanation:
We have been given a statement that Ali simplifies the expression [tex]9y+y[/tex] to [tex]9y^2[/tex]. We are asked to complete the given statements to explain why Ali's solution is correct or incorrect.
[tex]9y+y[/tex] is the same as:
To combine like terms, we will add 9y to y as:
[tex]9y+y=(9+1)y[/tex]
Therefore, [tex]9y+y[/tex] is the same as [tex](9+1)y[/tex].
[tex]9y^2[/tex] is the same as:
We know when we multiply two same variables, then their power increases. [tex]y^2[/tex] is same as product of two y's.
[tex]9y^2=9y\cdot y[/tex]
Therefore,[tex]9y^2[/tex] is the same as [tex]9y\cdot y[/tex].
[tex]9y+y[/tex] simplifies to:
Upon combining like terms, we will get:
[tex]9y+y=10y[/tex]
Since [tex]9y+y[/tex] simplifies to [tex]10y[/tex], therefore, Ali's solution is incorrect.
