Answer:
<em>6</em>
<em> - 5</em>
<em> + 1</em>
Step-by-step explanation:
Standard form is: 
To reach that you have to distribute:
(2x - 1) (3x - 1)
2x (3x - 1) = 6
- 2
-1 (3x - 1) = -3
+ 1
Combine like terms:
6
- 5
+ 1
Area of rhombus = 0.5 x D1 x D2
Thus,
Area = 0.5 x 30 x 18
= 270 units ^2
I think the correct answer is J