Question

выполните действия: (5a-c)^2

Answer 1

$(5a-c)^2 = (5a)^2 - 2 \cdot 5a \cdot c + c^2 = 25a^2-10ac+c^2$

Answer 2

$(5a) {}^{2} - 2 \times 5ac + c {}^{2} = 25 {a}^{2} - 10ac + c {}^{2}$