Question

In your notebook, set up the following subtraction in a vertical format and select the correct answer.

Take -4 + 3a 2 from 7a - a 2.


-4a 2 - 7a - 4
-4a 2 - 7a + 4
-4a 2 + 7a + 4
4a 2 + 7a + 4

Answer 1

\[ (-4 + 3a^2) - (7a - a^2)⇒-4+3a^2-7a+a^2⇒4a^2-7a-4\]this is not one of the options but it is surely correct.
or maybe it is a dash next to the first 4 when you said "Take -4...."
then it is \[4a^2-7a+4⇒ ⇒⇒⇒⇒A\]