Answer:
220
Step-by-step explanation:
We have given that Colin scored 25 and Brian scored x ( x-unknown)
Since we know that Brian scored 170 more than Colin, Brian scored:
x = 25 + 170 = 195
Now we know that Colin scored 25 and Brian scored 195.
They together scored
25 + 195 = 220
what subject is that? mate
Answer:
x^2 + 2x + 3
Step-by-step explanation:
Answer:
x^2 - 2xy + y^2.
Step-by-step explanation:
(x - y)^2
= (x - y)(x - y)
= x(x -y) - y(x - y)
= x^2 - xy - xy + y^2
= x^2 - 2xy + y^2.
