X^2+5x+6=0
(x+3)(x+2)=0
x-3, x-2
You know angles B and C are both 60°, the values of the angles in an equilateral triangle. Since the sum of angles in a quadrilateral is 360°, you have
B + C + x + y = 360°
60° +60° + x + y = 360°
x + y = 240°
Not sure why it needs to be a fraction, if I am missing something please tell me. 64 or 64/1
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