Answer:
1-a2
1-5x2
-4x2= -8
Step-by-step explanation:
For this case we have to represent the following expression algebraically:
"10 less than x is -45"
So:
10 less than x is represented as: 
Then, the complete expression is represented as:

Adding 10 to both sides of the equation:

Thus, the value of the variable is 
Answer:

Just a moment while I review this
All triangles angles in the inside add up to 180, so 180-76-72=32
Factor each
60x^4=2*2*3*5*x*x*x*x
45x^5y^5=3*3*5*x*x*x*x*x*y*y*y*y*y
75x^3y=3*5*5*x*x*x*y
common is 3*5*x*x*x=15x^3
gcf=15x^3