Answer:
x = ±6
Step-by-step explanation:
6x² - 216 = 0
( Add 216 to both sides )
6x² = 216
( Divide both sides by 6 to isolate x² )
x² = 36
( Square root both sides to isolate x )
angle list: k,l,j:
sides are: LJ, KJ, KL
-18
1/10 · 3/10 = 3/100