Which expression has the same value as (6x^2 + 3x-4) -(3x^2-5x+1)?

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?