Объяснение:

[tex]1)(b + 5)^{2} = b^{2} + 10b + 25[/tex]

[tex]2)(6 - c)^{2} = 36 - 12c + c^{2} [/tex]

[tex]3)(3a - 4)^{2} = 9 {a}^{2} - 24a + 16[/tex]

[tex]4)(6y + 3)^{2} = 36y^{2} + 36y + 9[/tex]

[tex]5)(2 \frac{1}{3} + 1 \frac{2}{3} b) ^{2} = 5 \frac{4}{9} + 7 \frac{7}{9}b + 2 \frac{7}{9} b^{2} [/tex]

[tex]6)(0.02a - 0.1b)^{2} = 0.0004 {a}^{2} - 0.004ab + 0.01b^{2} [/tex]