Answer:
(m−5)(2m−2)
=(m+−5)(2m+−2)
=(m)(2m)+(m)(−2)+(−5)(2m)+(−5)(−2)
=2m2−2m−10m+10
=2m2−12m+10
-84 - 55
= -139
Here both have same sign (-) so u add and put the common sign(-) ....
So the answer is option B ( -139)...
Hope it helps!!!
48 just count the inside of the triangle which is difficult since all side aren’t a full square or count the outside border of the triangle and just multiply I did 6x8
7) y = 4x
8) y = 7x/8
9) y = 25x/3
I think this are the answers.