1.а) 100-q^2= (10+q) (10-q)
б) 196p^2-r^2= 14^2* p^2-r^2=(14p+r) (14p-r)
в) 25x^2-289y^2=5^2* x^2-17^2*y^2= (5x+17y) (5x-17y)
г) a^2b^4-9c^2=a^2*(b^2)^2-3^2*c^2=(ab^2+3c) (ab^2-3c)
д) (m-1)^2-121=(m-1)^2-11^2= (m-1+11) (m-1-11)= (m+10) (m-12)
2. x^2-144=0
x^2-12^2=0
(x-12) (x+12)=0
x-12=0 или x+12=0
x=12 x=-12
Ответ:12,-12