7=62-b collect the like terms
7-62=-b
-55=-b divide both sides by negative
55=b
M2 -2mn + n2 =
4 - (-16) + 16 =
20 + 16 = 36
Have a nice days.......

if x=10 y=-2 and z=-5 then...

we solve this to get...
<em>65</em>
therefore the answer to your question would be 65
hope this helped-have a good day bro cya)
In words it would be: negative one point eight three eight three eight three