For this case we must simplify the following expression:

We solve the operation of the second parenthesis, taking into account that different signs are subtracted and the sign of the major is placed:

We multiply:

We eliminate the parentheses:

We add similar terms, taking into account that equal signs are added and the same sign is placed:

Answer:
The simplified expression is: 
Answer:
1264 and 632
Step-by-step explanation:
x + 2x = 1896
3x=1896
x=632
D. (x-14)(x+14)
a negative and a positive multiplied makes a negative outcome so -14•+14=-196. x•x is = to x^2
Answer:
1.4953
Step-by-step explanation:
You will need to break down 4.5
4√5
1.4953
Answer: 52
Step-by-step explanation: Not much work with this one but hope this helps :)