Question

4q²+2q+1-2q-1= ? I want it step by step

Answer 1

$4 {q}^{2} + 2q + 1 - 2q - 1 = 4 {q}^{2}$
this is because 2q and-2q will neutralize ang 1 and-1 will be neutralize

Answer 2

Eliminate the opposite+2q-2q

=4q^2+1-1

=4q^2