Answer:
[tex]3x^2[/tex].
Step-by-step explanation:
Let a represent our missing term. We have been given that the sum of missing term and [tex]7x^2[/tex] is [tex]10x^2[/tex].
We can represent this information in an equation as:
[tex]a+7x^2=10x^2[/tex]
[tex]a+7x^2-7x^2=10x^2-7x^2[/tex]
[tex]a=3x^2[/tex]
Therefore, the missing term for our given problem is [tex]3x^2[/tex].