Question

We should subtract a ²-ab+b²
from dash
to get ab-a²-b²
​

Answer 1

Answer:

CHEMISTRY

the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.

Answer 2

Answer:

1 - (a^2 - ab+b^2 ) = ab - a^2 - b^2