Factor the polynomial 5c2 - 17c - 14 (5c - 7)(c - 2) (5c - 2)(c - 7) (5c - 7)(c + 2) prime polynomial

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?

With alll of except for the 2 that i did already