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 = 3

answer: it's d

step-by-step explanation:

segment bisector

step-by-step explanation:

line segment bisector. definition: a line, ray or segment which cuts another line segment into two equal parts. try this drag one of the orange dots at a or b and note the the line ab always divides the line pq into two equal parts.

mark brainliest!

step-by-step explanation:

*calories burned = (weight)(calorie factor)*

calories burned = 180 (0.65)

calories burned = 117

the calories he used up is 117, which is 65% of his weight.