3251. (a+1)².- 3254. (10-c)². 3257. (b-0,5)². 3260. (0,3-m)². 3263. (2x+3)². 3266. (5y-4x)². 3269. (10c+0,1y)². 3272. (12a-0,3c)². 3275. (-n+5)². 3278. (-0,8x-0,5b)². 3281. 5a+-b 5 3284. +-b 3287. (-0,5x-60y)². 3290. (-0,2p-10q)². 3293. (2a+b)². 3296. (-3p+q²)².
Answers & Comments
3254)(10-c)^2=c^2-20c+100
3257)(b-0,5)^2=b^2-b+0,25
3260)0,3-m)^2=0,09-0,6m+m^2
3263)