Here is how you would work it out step by step.
You have to factor the equation you're given. (To check you factorization you can "FOIL" it and make sure it matches the original equation)
Then set the two answers you get from FOILing to zero and you should get your answers.
Answer:
Step-by-step explanation:
x = 2/3= 0.667
X = 35
use the formula a^2 + b^2 = c^2 in order to find the hypotenuse, which is x.
21^2 + 28^2 = c^2
441 + 784 = c^2
1225 = c^2
35 = c
x = 35
Answer:
The first one is correct.
Step-by-step explanation:
Because you have to 3 powers alright?
so, find the value of 2^4 and 16 ^3
etc..
this is a best way to solve that
Note : I don't know where are
the power of 9 came from? ( second one )
But anyway, the first one is correct.
200,000,000 + 40,000,000 + 9,000,000 + 100,000 + 4,000 + 300 + 30