For this case we must simplify the following expression:
![(a + b) (a ^ 2-ab + b ^ 2)](https://tex.z-dn.net/?f=%28a%20%2B%20b%29%20%28a%20%5E%202-ab%20%2B%20b%20%5E%202%29)
We apply distributive property:
![a * a ^ 2-a * ab + a * b ^ 2 + b * a ^ 2-b * ab + b * b ^ 2 =](https://tex.z-dn.net/?f=a%20%2A%20a%20%5E%202-a%20%2A%20ab%20%2B%20a%20%2A%20b%20%5E%202%20%2B%20b%20%2A%20a%20%5E%202-b%20%2A%20ab%20%2B%20b%20%2A%20b%20%5E%202%20%3D)
To multiply powers of the same base, the same base is placed and the exponents are added.
![a ^ 3-a ^ 2b + ab ^ 2 + a ^ 2b-ab ^ 2 + b ^ 3 =](https://tex.z-dn.net/?f=a%20%5E%203-a%20%5E%202b%20%2B%20ab%20%5E%202%20%2B%20a%20%5E%202b-ab%20%5E%202%20%2B%20b%20%5E%203%20%3D)
We simplify similar terms:
![a ^ 3 + b ^ 3](https://tex.z-dn.net/?f=a%20%5E%203%20%2B%20b%20%5E%203)
Finally we have:
![a ^ 3 + b ^ 3](https://tex.z-dn.net/?f=a%20%5E%203%20%2B%20b%20%5E%203)
Answer:
![a ^ 3 + b ^ 3](https://tex.z-dn.net/?f=a%20%5E%203%20%2B%20b%20%5E%203)
Do u have a pic of the problem
Answer:
cos(X) = 40/41, sin(X) = 9/41, tan(X) = 9/40
Step-by-step explanation:
Know the acronym SOHCAHTOA: Sine is the Opposite side divided by the Hypotenuse, Cosine is the Adjacent side divided by the Hypotenuse, and Tangent is the Opposite side divided by the Adjacent side.
Answer: 11
Step-by-step explanation:
The sum of 8 and 3
Sum is the same as addition.
Therefore, the equation is 8+3
Solve 8+3
8+3=11
Answer:
M=-7 and n= the square root of 2
Step-by-step explanation:
integers are counting numbers (1,2,3,4, etc.) that can be negative. irrational numbers' decimals go on and on and on, like 4.1946183538 and dont repeat, im pretty sure