The answer should be the 4th one....
The first step would be to simplify the parenthesis so the equation will be solvable. For example: 2x+3y+2(x-y) -3x becomes 2x+3y+2x-2y-3x. So now we can solve the equation and get our answer. The rules of the distributive property state that you add the numbers with similar variables. Example( I am using the equation) 2x+2x-3x equals x, 3y-2y equals y. So the final answer is x+y!
Answer:
A number plus seven times itself equals 1200.
Step-by-step explanation:
The number is "x", and 7 times itself is 7 "x". When one adds the two, they get 1200. Hence it models the situation;
x + 7x = 1200.
Answer:
Step-by-step explanation:
![~~~2x^3y-2y\\\\=2y(x^3-1)\\\\=2y(x-1)(x^2+x+1)~~~~~~~~~~;[a^3-b^3 = (a-b)(a^2 +ab+b^2)]](https://tex.z-dn.net/?f=~~~2x%5E3y-2y%5C%5C%5C%5C%3D2y%28x%5E3-1%29%5C%5C%5C%5C%3D2y%28x-1%29%28x%5E2%2Bx%2B1%29~~~~~~~~~~%3B%5Ba%5E3-b%5E3%20%3D%20%28a-b%29%28a%5E2%20%2Bab%2Bb%5E2%29%5D)
