Question

How do you take `-4 + 3a^2` from `7a - a^2`?

Answer 1

If you "take" `(-4+3a^2)` from `(7a-a^2)` you get `(4+7a-4a^2)`

Explanation:

To "take" A away from B, means to subtract A from B or, algebraically, `(B-A)`