Question

Efectuati , folosind factorul comun : a) 82+96*82+97*18= b) 27*101-27= c) 14*(x+y)-5*(x+y)= d) (a+b)*(b+c)*(c+a)-(a+b)*(b-c)*(a+c)=

Answer 1

82(96+1)+97*18=97(82+18)=97*100=9700. / 27(101-1)=27*100=2700. / (x+y)(14-5)=9*(x+y). / (c+a)(a+B)(B+c-B+c)=2c(a+B)(c+a)