Angles f and c are congruent
(a² + b² - 2ab) + 2ac - 2bc = (a - b)² + 2c(a-b) = (a-b)(a-b +2c)
See the attached graphic.
X is negative and Y is positive so it is Quadrant 2 (or Quadrant II)
Answer:
x = \sqrt(6)/3 , - \sqrt(6)/3
Step-by-step explanation:
decimal form:
x= 0.81649658..., -0.81649658...