Answer:
[tex]2a^2 + 3x - 2a[/tex]
Step-by-step explanation:
[tex] (6a^2 + 3x) - (4a^2 + 2a) = [/tex]
The first set of parentheses is unnecessary and can be removed.
[tex] = 6a^2 + 3x - (4a^2 + 2a) [/tex]
To remove the second set of parentheses, you must distribute the negative sign to its left as if it were a -1 multiplying the quantity inside the parentheses.
[tex] = 6a^2 + 3x - 1(4a^2 + 2a) [/tex]
[tex] = 6a^2 + 3x - 4a^2 - 2a [/tex]
Now combine like terms. Like terms are terms with the same variable part.
[tex] = 2a^2 + 3x - 2a [/tex]