Answer:2m^2+mn+2m+9n-3
Step-by-step explanation:
m(2+n-m)+3(3n+m^2-1)
open brackets
2m+mn-m^2+9n+3m^2-3
Collect like terms
3m^2-m^2+mn+2m+9n-3
2m^2+mn+2m+9n-3
Hi!
You <em>cannot.</em>
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This is because ALL triangles MUST have 180 degrees, so if it doesn't it's not even a triangle. Therefore you cannot use it because, well, it's not a triangle.
Anytime your adding a negative number, its the same as subtract a positive number.
85 + (-96) → 85 - 96
85 - 96 = -11
Best of Luck!
7/8=2/5x
If you solve this you get 2.1875 or 35/16
You can not divide by zero in math.
