Answer:
the answer is 112
Step-by-step explanation:
38+82 =70
180-70=110
x=110°
x = 4, -2 1/2
factors:
(2x + 5) (x - 4)
set each factor equal to zero:
2x + 5 = 0
2x = -5
x = -5/2
x - 4 = 0
x = 4