Question

can someone explain this for me

Simplify the following expression.
(8x^2 - 8x + 4) - (4x^2 + 8)

Answer 1

Ok when adding with variables you can only add variables with the same base and same degree
Now we have been given an expression .. our first step is to remove the brackets and distribute the negative sign
\(8x^2-8x+4-4x^2-8\)
Do you see how we distributed the negative sign?

Answer 2

yeah

Answer 3

The nest step is to add variables with the same base