Hello!
Explanation:
Distributive property: → 
First do expand.

Then you subtract by 4 from both sides of an equation.

Simplify by equation.

Next, subtract by 2x from both sides of an equation.

Simplify.

You can also divide by 2 from both sides of an equation.

Finally, simplify by equation and dividing into the groups.

Answer: → 
Hope this helps!
(a^3 - 2a + 5) - (4a^3 - 5a^2 + a - 2)
=a^3 - 2a + 5 - 4a^3 + 5a^2 - a + 2
= -3a^3 + 5a^2 - 3a + 7
Answer:
transitive property
Step-by-step explanation:
The <em>transitive property</em> tells you that ...
∠A ≅ ∠B and ∠B ≅ ∠C
means you can conclude ...
∠A ≅ ∠C . . . . transitive property of congruence