4 5/6 is the same as 29/6.
2 2/3 is the same as 8/3.
29*8 is 208.
6*3 is 18.
208/18 simplified is 104/9.
Answer:
Step-by-step explanation:
(1) 
First, let's expand the expression:


Next, let's factor the quadratic:

Finally, set the equation equal to
to find the solutions


(2) During the step
, when you take the square root of both sides, you have two equations, rather than one:
and
, so the solutions should be 
(3)

Add
to both sides

Multiply both sides by 

Take the square root of both sides
±
Subtract
from both sides

Answer:
764
Step-by-step explanation:
Subtract 921 with 157
![\bf \cfrac{\sqrt{16}}{2}-\sqrt[4]{16}\implies \cfrac{4}{2}-\sqrt[4]{2^4}\implies 2-2\implies 0](https://tex.z-dn.net/?f=%20%5Cbf%20%5Ccfrac%7B%5Csqrt%7B16%7D%7D%7B2%7D-%5Csqrt%5B4%5D%7B16%7D%5Cimplies%20%5Ccfrac%7B4%7D%7B2%7D-%5Csqrt%5B4%5D%7B2%5E4%7D%5Cimplies%202-2%5Cimplies%200%20)
recall that the whole numbers is the set of 0,1,2.... onwards
![\bf -\sqrt{36}+\sqrt[3]{125}\implies -\sqrt{6^2}+\sqrt[3]{5^3}\implies -6+5\implies -1](https://tex.z-dn.net/?f=%20%5Cbf%20-%5Csqrt%7B36%7D%2B%5Csqrt%5B3%5D%7B125%7D%5Cimplies%20-%5Csqrt%7B6%5E2%7D%2B%5Csqrt%5B3%5D%7B5%5E3%7D%5Cimplies%20-6%2B5%5Cimplies%20-1%20)
recall that integers are just whole numbers, positive or negative.