Объяснение:
.............,....
(3b-1)^2= 9b^2-6b+1
(5z+2)^2= 25z^2+20z+4
(6a+b)^2= 36a^2+12ab+b^2
(4x-5y)^2= 16x^2-40xy+25y^2
(0.3a+10b)^2= 0.09a^2+6ab+100b^2
(8b-0.5)^2=64b^2-8b+0.25
Объяснение:
.............,....
(3b-1)^2= 9b^2-6b+1
(5z+2)^2= 25z^2+20z+4
(6a+b)^2= 36a^2+12ab+b^2
(4x-5y)^2= 16x^2-40xy+25y^2
(0.3a+10b)^2= 0.09a^2+6ab+100b^2
(8b-0.5)^2=64b^2-8b+0.25
Объяснение: