Question

(-2z^2-14)-(-12z^2)

Answer 1

@ganeshie8 @iambatman @myininaya @zepdrix @wio

can anybody help?

Answer 2

\[(-2z^2-14)-(-12z^2) = (-2z^2 -14+12z^2) = (-2+12)z^2-14\]

you can combine terms that have like powers on the variable.

Answer 3

minus a negative is the same as plus

10-(-3) = 10 + 3

Answer 4

I still don't understand it. It's confusing.