Answer:
-x-5
Step-by-step explanation:
Not even going to explain this
Answer:
<h2>C. 6x² + 6x² + 3x + 4</h2>
Step-by-step explanation:

AB = 9 cm
BC = 6cm
CD = 7 cm
AE = 6 cm
3BC = AB
3ED = AE
AB = AE
BC ED
⁹/₃ = ⁶/ₓ
3 · 6 = 9 · x
18 = 9x
9 9
2 = x
ED = 2 cm