Small appliance refers to a class of appliances that are semi-portable or which are used on tabletops, countertops, or other platforms. Appliances are electrical/mechanical tools which accomplish some household[?] function, such as cooking or cleaning.
... so we add the square of b/(2a) to both sides, getting
<math>x^2+\frac{b}{a}x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}.</math>
The left side is ...