Subtract and simplify: (13x^2 + 2) - (4x^2 + 2x - 7)

a) 9x^2 - 2x + 9
b) 9x^2 + 2x + 9
c) 17x^2 + 2x - 5
d) 9x^2 - 2x - 5

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!

answer: x=60