Question

Перетворити вираз у многочлен
(1,25a²+8b)²=?

Answer 1

25/16a4+20a2b+64b2...

Answer 2

$(a+b)^{2} = a^{2} + 2ab + b^{2} \\(1.25a^{2} +8b)^{2} = (1.25a^{2})^{2} + 2*1.25a^{2}*8b + (8b)^{2} = 1.5625a^{4}+ 20a^{2}b + 64b^{2}$