What are additive and multiplicative inverses?

 Additive inverses are those that are added to equal zero, such as -2 and 2.

Multiplicative inverse are those multiplied to equal one, such as 2 and 1/2. 

(-1)³⁷⁹ 

-1 

-14x⁵

7x³

-2x²

8x⁵y

3x⁴ • 4x⁴ +(x²)⁴

13x⁸ 

(½)²/ (¼)²

4 

y¹²³ ÷ y¹¹⁹

y⁴ 

 Simplify. 

√(6) • √(2)

2√(3)

(x+11)(x+7) 

x²+18x+77 

(2x+5)²

4x²+20x+25 

Find the missing length.

a=3, b=4, c=   

5