Answer:
6x^2 + 29x + 35
Step-by-step explanation:
(2x+5)(3x+7)
multiply 2x with 3x and 7
multiply 5 with 3x and 7
simplify
6x^2 + 14x + 15x + 35
= 6x^2 + 29x + 35
Answer: 21 degrees
Step-by-step explanation:
Since (2x + 9) + 129 = 180, we can get that 2x = 42 and x = 21. Hope this helped!