Answer:
Choice C (the third option)
Step-by-step explanation:
![(a+b)(a+b) = a^2+2ab+b^2](https://tex.z-dn.net/?f=%28a%2Bb%29%28a%2Bb%29%20%3D%20a%5E2%2B2ab%2Bb%5E2)
Choice C is incorrect because it is missing the
. Hope this helped!
Answer:
really
Step-by-step explanation:
really hdnsbsv z
You would multiply 10 and 15 then divide by 2
I will show you how to do #5:
a). -20 + 2(n-1) Original Expression
-20 +2n - 2 Distributive Property
-22 + n Combine Like Terms
Final Expression: -22 + n
b). 1.5 + (-2.5)(n -1) Original Expression
1.5 + -2.5n + 2.5 Distributive Property
4 - 2.5n Combine Like Terms
Final Expression: 4 - 2.5n
Answer:
1. 10
2. 1250
3. 1
4. 12.5
Step-by-step explanation: