Answer:
-7(1/7) = -1
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
21 = 3*7
65 = 5*13
CGF: to find the greatest common factor, multiply those factors both numbers have in common
GCF :1 since there are no factors in common
Answer:
labron james
Step-by-step explanation:labron james labron james labron james
Answer:
Step-by-step explanation:
We are to find two numbers such that their difference and also the difference of their cubes are given numbers
Let the two numbers be x+3 and x-3
so that the difference between the numbers is 6.
Difference between the cubes
= ![(x+3)^3-(x-3)^3\\= (x+3-x+3)[(x+3)^2+(x-3)^2-(x+3)(x-3)] = 504\\3x^2+9=84\\x^2 = 25\\x = 5 or -5](https://tex.z-dn.net/?f=%28x%2B3%29%5E3-%28x-3%29%5E3%5C%5C%3D%20%28x%2B3-x%2B3%29%5B%28x%2B3%29%5E2%2B%28x-3%29%5E2-%28x%2B3%29%28x-3%29%5D%20%3D%20504%5C%5C3x%5E2%2B9%3D84%5C%5Cx%5E2%20%3D%2025%5C%5Cx%20%3D%205%20or%20-5)
So the numbers are either 2 and 8 or
(-2 and -8)
To find the answer, you just plug 2x in place of x (even though 2x already has an x). It would look something like this: f(2x)= (2x)^3 = 2x*2x*2x= 8x^3
