Multiply each throughout! =x^2+6x+8x+48 then arrange accordingly x^2+14x+48 remember that in quadratic equation that you should have a squared (a) variable and a coefficient(b) and just a raw value (c)
Each washing machine is $390 and the first washing machine is better because its marked down all the way in stead of a discount, meaning that the tax will be lower (I think)