Answer:
(X+9)x(X-4)
Step-by-step explanation:
1. write as a difference:
X^2+5X-36
2. factor the expressions:
X^2+9X-4X-36
3. factor the expression: Xx(X+9)-4(X+9)
400
Hope this helps!
1. 57 degrees
2. B
3. 117 degrees
4. C