Cho hai đa thức P(x) = x3 - 2.x+1 Q(x) = 2.x2-x3 + x -3.

a)Tính P(x) + Q(x) và P(x) - Q(x)

b)Tính giá trị của đa thức P(x) + Q(x) tại x = -1; x = -2/3

How am i goonna know explain

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%

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