For the equation to = 0 , one of the components must = 0
x = 0
x = -13/9
x = -2/11
(Make each bracket = 0)
e.g. 9x+13=0
9x = -13
x = -13/9
Answer:
the answer is D
Step-by-step explanation
the ratio of the triangles is 3:1 (you find that out because 21:7 is simplified to 3:1.
when you plug in 6 as x then you get 18:6 which simplifies to 3:1 also
768*3+9600 is the answer
= 2304+9600
= €11904