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)
Answer:
Step-by-step explanation:
x=81
63+36+x=180
99+x=180
99+81=180
y and z both equal 81
13+y+z=180
180-13=167
167/2 is 83.5
13+83.5+83.5
13+167
180
Answer: -5
Step-by-step explanation: -2 -3 = -5
Answer: 1
Step-by-step explanation:
1. 28p + 32
2. - 56s - 14
3. 48d - 24
<em><u>#thanks</u></em><em><u> </u></em><em><u>for</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>points</u></em><em><u>!</u></em>
<em><u>#Chloe919</u></em><em><u> </u></em>
<em><u>#carry</u></em><em><u> </u></em><em><u>on</u></em><em><u> </u></em><em><u>learning</u></em>