Answer:

Step-by-step explanation:
You need to use the quadratic formula or graph it and find the zeros. that does factor cleanly
It is 1. 2 and 3 are base angles.
Answer:
x=115
Step-by-step explanation:
180 - (115) =65(triangle)
65 + x = 180(on a line)
x=180-65
x = 115
Answer:
its the second one
Step-by-step explanation: