Question

(5x-3y) в квадрате
(2x+1)в квадрате
(x-12)(x+12)
(3a-2в)(2в-3a)

Answer 1

$(5x - 3y) {}^{2} = 25x {}^{2} - 30xy + 9y {}^{2}$
$(2x + 1) {}^{2} = 4x {}^{2} + 4x + 1$
$(x - 12)(x + 12) = x {}^{2} + 144$
$(3a - 2b)(2b - 3a) = 9a {}^{2} - 4b {}^{2}$