Which two values of x are roots of the polynomial below? x2 + 5x + 7

To find roots we need to solve the equation
x² +5x+7=0
a=1, b=5, c=7

D= b² - 4ac = 25 -4*1*7= 25 - 28 =-3
Because the D<0, there are no real roots, only imaginary roots.

The answer is 270 cars.you can do this by making a proportional relationship. for instance, 200 is the whole we are using, so on a “number line” 200 would be over 100%. now, since he sells 35% more, add 35% to 100% to get 135% on the other side of the “number line” on the bottom half, leaving the top half empty.cross multiply 200 by 135 then divide by 100 to get your answer. i hope this , if it did, , if you don’t mind, giving me brainiest! 200/100% } 200 • 135 /100 ? /135%