$$a ( 2 a + 1 ) - a ( 2 a + 1 )$$
$0$
$$2a^{2}+a-a\left(2a+1\right)$$
$$2a^{2}+a-\left(2a^{2}+a\right)$$
$$2a^{2}+a-2a^{2}-a$$
$$a-a$$
$$0$$
Show Solution
Hide Solution
$$a\left(2a+1-\left(2a+1\right)\right)$$
