Step-by-step explanation:
sum means add
(3x+2)(3x+2) = 6x+4
Answer:
Quadrilateral ABCD is parallelogram, because opposite sides are congruent and adjacent sides are not perpendicular.
(x-1)+2(3x-1)=0
2x-2+6x-2=0
8x-4=0
8x=4
x=4/8
×=1/2
2